Tag Archives: March weather

March 27 to April 2: This week in Denver weather history

This Week In Denver Weather History
March 27 to April 2: This week in Denver weather history

With March being historically our snowiest month we would expect to see plenty of snow events this week in Denver weather history and we do indeed. Also notable however is the other extreme – that of dangerously dry conditions. We see one event, in 1963, that scorched 25,000 acres of ranchland in Weld County.

From the National Weather Service:

25-27

In 1904…heavy snowfall totaled 7.0 inches in downtown Denver.

26-27

In 1886…heavy snowfall totaled 7.1 inches in downtown Denver.

In 1911…post-frontal north winds were sustained to 48 mph on the 26th and to 47 mph on the 27th.

In 1931…a cold front brought snow and very cold weather to the city. Snowfall totaled 7.3 inches over downtown Denver with most of the snow…6.4 inches…occurring on the 26th… When northwest winds were sustained to 38 mph with gusts to 44 mph. High temperature of 31 degrees on the 26th equaled the low temperature of the previous day as the temperature plunged to a low of 1 degree below zero. High temperature of only 15 degrees on the 27th was a record low maximum for the date. Low temperature of 2 degrees below zero on the 27th was not a record.

In 1975…a major pre-Easter blizzard…the worst since the vicious storm of 1949…battered northeastern Colorado and left livestock losses in millions of dollars…but metro Denver escaped the main brunt of the storm and received only 5.0 inches of snowfall. North winds gusted to 38 mph at Stapleton International Airport where temperatures plunged from a high of 50 degrees to 18 degrees by midnight on the 26th.

In 1991…heavy snow fell over portions of the eastern foothills with 9 inches recorded at Lake Eldora west of Boulder. The snow spread across metro Denver…but snowfall totaled only 1.7 inches at Stapleton International Airport where north to northeast winds gusting to 31 mph on both days produced some blowing snow.

27

In 1873…a severe wind and sand storm damaged buildings in the city. At 11:00 am brisk west winds blew clouds and sand into the city…which continued for an hour when it abated some. At 2:00 pm another terrific sand storm blew a gale from the west. The storm lasted 30 minutes…but winds remained brisk the rest of the day.

In 1884…a windstorm struck the city at mid-morning and lasted until midnight. Sustained winds of 40 to 60 mph unroofed some buildings and blew others down. A few people were injured…but none fatally.

In 1896…southwest winds sustained to 60 mph with gusts as high as 70 mph warmed the temperature to a high of 59 degrees.

In 1905…north winds were sustained to 40 mph.

In 1939…freezing drizzle deposited glaze as thick as 1/4 inch from late morning through late afternoon. No damage was reported.

In 1956…strong and gusty winds raked metro Denver all day behind a pacific cold front. Wind gusts to 58 mph at Stapleton Airport briefly reduced the visibility to 1 mile in blowing dust.

In 1987…snow and wind closed many highways across eastern Colorado for the second time in less than a week. I-25 was closed south of Denver and I-70 was closed east of Denver for nearly 48 hours. Metro Denver only received around 4 inches of new snow…but snow and blowing snow caused air traffic delays of up to 3 hours at Stapleton International Airport where snowfall totaled 3.5 inches and north winds at 15 to 25 mph gusted to 40 mph. Temperatures hovered in the 30’s for much of the day.

In 1997…strong winds developed behind a fast moving cold front. While the highest winds were north and northeast of metro Denver…northwest winds gusting to 56 mph at Denver International Airport produced widespread blowing dust…which briefly reduced the visibility to 2 1/2 miles.

27-28

In 1951…heavy snowfall totaled 6.5 inches at Stapleton Airport where north winds gusted to 38 mph on the 27th and 41 mph on the 28th.

In 1972…heavy snowfall of 6.2 inches was measured at Stapleton International Airport…where northeast winds gusted to only 21 mph.

In 1980…a major blizzard struck the northeastern Colorado plains…closing both I-70 and I-76 to the east of Denver for a time. Some areas received 1 to 2 feet of snow. Drifts were 4 to 8 feet high. The storm killed many young livestock. At Stapleton International Airport…snowfall totaled 6.7 inches from the storm and north winds gusted to 29 mph.

In 2002…high winds developed in the foothills west of metro Denver. Winds gusted to 81 mph near Fritz Peak…72 mph at Rollinsville…and 70 mph at Blackhawk. West winds gusted to 51 mph on the 27th and to 45 mph on the 28th at Denver International Airport where the temperature warmed to a high of 69 degrees on the 28th.

27-29

In 1948…high winds raked Boulder. A wind gust to 75 mph was recorded at Valmont. Sustained winds in excess of 35 mph were estimated in Boulder. Minor damage was reported.

In 1961…heavy snowfall totaled 9.5 inches at Stapleton Airport over the 3 day period. Most of the snow…5.3 inches…fell on the 28th. Winds were generally light and gusted to only 22 mph from the north.

28

In 1886…the lowest recorded temperature in March…11 degrees below zero…occurred.

In 1911…a thunderstorm produced snowfall of 0.4 inch…which was the only measurable snowfall of the month…making the month the second least snowiest March on record.

In 1962…a vigorous cold front produced strong winds across eastern Colorado. North winds gusted to 46 mph at Stapleton Airport where visibility was briefly reduced to 3/4 mile in blowing dust. A construction worker was injured in Aurora when he was struck by a windblown piece of plywood.

28-29

In 1891…rain changed to snow and totaled 9.7 inches in the city. Northeast winds were sustained to 12 mph with gusts to 28 mph on the 28th.

In 1910…a strong cold front brought much wind…rain…and and snow to the city. Rain on the 28th changed to snow early on the 29th. Snowfall totaled only 2.8 inches…but north winds were sustained to 50 mph on the 29th. Precipitation from the storm totaled 0.96 inch.

In 1994…moist upslope winds combined with an upper level system to dump 5 to 7 inches of snow along the eastern foothills and across metro Denver. Snowfall totaled 6.3 inches at Stapleton International Airport where northeast winds gusted to 39 mph. Thirteen inches of new snow were measured at the Eldora Ski Area west of Boulder.

28-30

In 1949…a major winter storm dumped 11.3 inches of snow over downtown Denver. Snowfall totaled 10.4 inches at Stapleton Airport. North to northeast winds were sustained to 17 mph.

In 1985…a slow moving snow storm moved across the state. Denver received only 4.0 inches of snowfall with amounts in the foothills totaling 1 to 2 feet. Still…this was enough snow in Denver to cause flight delays of up to 6 hours at Stapleton International Airport on the night of the 29th. East winds gusted to 28 mph on the 28th.

29

In 1887…west winds sustained to 44 mph warmed the temperature to a high of 62 degrees.

In 1921…post-frontal northeast winds were sustained to 46 mph with gusts to 52 mph.

In 1925…southeast winds were sustained to 46 mph with gusts to 48 mph. These were the strongest winds of the month that year. The winds warmed the temperature to a high of 72 degrees.

In 1934…a construction worker was killed by lightning as he walked with a shovel on his shoulder along Cherry Creek in the city. The thunderstorm produced light rain.

In 1967…a southwest wind gust to 52 mph was recorded at Stapleton International Airport. The warm Chinook winds warmed the temperature to 79 degrees equaling the record for the date.

In 1979…a tornado touched down 4 miles southwest of Parker… But caused no reported damage.

In 1998…four children attending a birthday party in Denver were injured when an apparent dry microburst produced a sudden strong wind gust which blew an inflatable playhouse they were occupying into a neighbors yard. The playhouse scraped the roof of the host’s two-story house…then landed in the adjoining yard. The children were treated for minor head injuries and cuts.

29-30

In 1938…overnight heavy snowfall was 6.3 inches over downtown Denver.

In 1982…strong winds buffeted metro Denver…breaking windows and damaging roofs. Wind gusts to 90 mph were recorded in Boulder and 51 mph at Stapleton Airport. The strong winds flattened a condominium under construction in Lakewood.

In 1991…1 to 6 inches of snow fell across metro Denver with the heaviest snow confined to the foothills. Six inches of snow was recorded at South Platte in the foothills southwest of Denver and 3 inches at Castle Rock. Snowfall totaled only 0.7 inch at Stapleton International Airport where northeast winds gusted to 33 mph on the 29th.

29-31

In 1970…snowfall totaled 6.0 inches at Stapleton International Airport. Heavy snow accumulation in Boulder on the 29th caused the collapse of a carport at an apartment building…damaging 11 automobiles. Northeast winds gusted to 24 mph at Stapleton International Airport.

Continue reading March 27 to April 2: This week in Denver weather history

Time lapse video: Thornton’s March 23, 2016 blizzard

To say the storm that pounded the Colorado Front Range was a big one does not do it justice.  In less than 24 hours Thornton would see blizzard conditions and our second heaviest snowfall of the previous 10 years.

Light rain began in the early morning hours but that soon transitioned to snow.  The white stuff would continue to fall into the evening.  Strong winds helped whip the snow and create blizzard conditions grinding the Colorado Front Range to a halt.

Thornton would tally 20.1 inches of snow, one of the heftier totals from the area.

The video below begins at midnight and runs through 7:00pm.

Thornton’s March 2016 blizzard – Live social feed

ThorntonWeather.com on Facebook, Google+ and TwitterJust yesterday we saw temperatures in excess of 70 degrees.  Wednesday, March 23, will bring blizzard like conditions to Thornton.  That is springtime in Colorado!

The National Weather Service has issued a Blizzard Warning which will be in effect until 6:00pm.  Road conditions have deteriorated throughout the day and will continue to do so.  Power outages are occurring and most schools and government offices are closed as are many businesses.

Throughout the period we will of course be monitoring the system and posting regularly to our Facebook page and Twitter feed.  You can follow along in real time below.  We are also on Google+ here.

For comprehensive look at the storm, please monitor our Winter Weather Briefing page.


 


March 20 to March 26: This Week in Denver Weather History

This Week In Denver Weather History
March 20 to March 26: This Week in Denver Weather History

Up until a few days, the Colorado Front Range had been quite dry for the better part of a month.  Temperatures had stayed well above normal and an early onset of spring seemed to be in the offing.  That isn’t always the case as we can see looking back at this week in Denver weather history. March is historically our snowiest month and many significant snowstorms have occurred during this period including one six years ago on the 23rd and 24th. Read more about that event and others below.

From the National Weather Service:

18-21

In 1907…a warm spell resulted in 6 daily temperature records. Record maximum temperatures of 82 degrees occurred on the 18th with 81 degrees on the 19th and 80 degrees on the 20th. Record high minimum temperatures of 52 degrees occurred on the 19th and 20th with 54 degrees on the 21st.

19-20 in 1912…post-frontal heavy snowfall of 6.3 inches was measured in downtown Denver. North winds were sustained to 28 mph with gusts to 30 mph on the 19th. The strong cold front plunged temperatures from a high of 60 degrees on the 19th to a low of 1 degree on the 20th.

In 1959…a major storm dumped heavy snowfall of 7.7 inches on Stapleton Airport where north winds gusting to 44 mph caused much blowing and drifting snow. Many highways were blocked…and there was damage to phone lines along the South Platte River. The storm started as rain and changed to heavy wet snow…which froze on the lines causing the poles to break. The storm caused 2 deaths over eastern Colorado.

In 2006…strong northerly winds…associated with a surface low pressure system that intensified as it moved into the central Great Plains…brought heavy wet snow to the eastern foothills and northeastern plains of Colorado. The hardest hit areas included the foothills of Boulder and Gilpin counties. Storm totals included: 15 inches at Rollinsville… 14 inches at Aspen Springs…12.5 inches near Nederland…and 5.7 inches in the Denver Stapleton area. Strong winds…heavy snow…and poor visibility forced the closure of interstate 70 from Denver east to the Kansas state line. North winds gusted to 32 mph at Denver International Airport on the 19th.

19-21

In 1888…heavy snowfall totaled 8.6 inches over downtown Denver. North winds were sustained to 27 mph on the 19th.

20

In 1915…north winds were sustained to 40 mph with gusts to 42 mph. Only a trace of snow fell.

In 1989…2 to 6 inches of snow fell along the Front Range urban corridor with up to 9 inches in Boulder. Only 1.6 inches of snowfall were measured at Stapleton International Airport where north winds gusted to 36 mph.

20-21

In 1878…warm days with high temperatures in the lower 70’s in the city…caused snow to melt on the palmer divide…which caused the waters in Cherry Creek to rise. The high…rapid running water damaged a home and eroded bridge footings and abutments. Some bridges became unsafe for the passage of trains.

In 1904…southwest winds sustained to 48 mph with gusts to 60 mph warmed the temperature to a high of 68 degrees on the 20th. The high was only 42 degrees on the 21st behind a cold front…which produced 1.3 inches of snow and northeast winds sustained to 27 mph overnight.

In 1923…post-frontal rain changed to heavy snow and totaled 8.2 inches over the city. North winds were sustained to 27 mph with gusts to 29 mph on the 20th. This was the second major snow in a week.

In 1932…rain changed to heavy snow…which totaled 6.2 inches in downtown Denver. North winds gusted to 22 mph on the 21st.

In 1948…heavy snowfall totaled 7.2 inches over downtown Denver.

In 1952…a major snow storm produced north wind gusts to 35 mph and dumped 16.9 inches of snowfall on Stapleton Airport. The maximum snow depth on the ground was 13 inches due to melting.

In 2000…heavy snow fell in and near the foothills of Douglas and Jefferson counties. Snowfall totals included: 9 inches near tiny town and 7 inches in Littleton. Snowfall totaled only 1.8 inches at the site of the former Stapleton International Airport. North winds gusted to 34 mph at Denver International Airport on the 20th.

20-22

In 1944…heavy snow fell over metro Denver for a total of 36 hours. The storm dumped 18.5 inches of snowfall over downtown Denver and 12.2 inches at Stapleton Airport. Fortunately…there were no strong winds with the storm. North winds to only 19 mph were recorded on the 21st.

21

In 1898…an apparent Canadian cold front produced strong winds and plunged temperatures from a high of 56 degrees to a low of 8 degrees late in the day. North winds were sustained to 48 mph with gusts to 60 mph.

In 1908…light snowfall of 1.3 inches produced 0.10 inch of precipitation. This…along with the 0.01 inch of precipitation on the 8th…resulted in the driest March on record with a total of 0.11 inch of precipitation.

In 1916…southwest winds were sustained to 46 mph with a gust to 48 mph. The Chinook winds warmed the temperature to a high of 62 degrees.

In 1923…heavy snowfall totaled 8.0 inches in downtown Denver.

In 1953…northwest winds gusting to 57 mph briefly reduced visibility to 3/4 miles in blowing dust at Stapleton Airport.

In 1981…rain changed rapidly to snow…but totaled only 2.8 inches at Stapleton International Airport. North winds gusting to 35 mph produced much blowing snow and reduced the visibility to a half mile at times. Over the higher elevations of south metro Denver…4 to 6 inches of snow were measured.

21-22

In 1955…wind gusts to 98 mph were recorded at Rocky Flats south of Boulder. Some damage and a few minor injuries were reported in Boulder. Northwest winds were sustained to 28 mph with gusts to 39 mph at Stapleton Airport on the 22nd.

In 1966…a vigorous cold front produced only 1.7 inches of snowfall at Stapleton International Airport…but northeast winds gusted to 49 mph on the 21st. Temperatures cooled from a maximum of 66 degrees on the 21st to a minimum of 14 degrees on the 22nd. Strong winds occurred on both days.

In 1992…an arctic cold front produced upslope snow across metro Denver mainly west of I-25. Castle Rock reported 6 inches of snow with 3 inches at Evergreen. At Stapleton International Airport…only 1.5 inches of snowfall were measured and northeast winds gusted to 18 mph on the 21st.

22

In 1905…apparent post-frontal north winds were sustained to 49 mph.

In 1922…a vigorous cold front with north winds sustained to 41 mph brought only 0.6 inch of snowfall to the city. These were the highest winds of the month.

In 1966…high winds caused extensive blowing snow that impeded traffic and closed highways over a wide area of eastern Colorado. Wind damage was widespread…but minor. North wind gusts to 47 mph were recorded at Stapleton International Airport where visibility was reduced as low as 1/8 mile in blowing snow.

In 1975…a strong west wind gust to 51 mph was recorded at Stapleton International Airport…while east of Denver the strong winds caused minor property damage and considerable blowing dust which closed several roads.

In 1979…near-blizzard conditions paralyzed the northeastern quarter of the state. Strong winds and drifting snow closed many roads…including I-25 and I-70. Power outages darkened sections of metro Denver. Snow accumulations of 4 to 12 inches were measured over the plains with drifts several feet deep. Only 3.5 inches of snow were recorded at Stapleton International Airport where northeast winds gusted to 39 mph causing some blowing snow.

In 1995…strong winds associated with a fast moving pacific cold front moved from the mountains into metro Denver. Winds estimated at 60 to 75 mph picked up rocks and shattered the windows of a car in Louisville. The strong winds blew down and partially destroyed two houses under construction just north of Thornton. West winds gusted to 53 mph at Denver International Airport where the visibility was briefly reduced to 1/2 mile in blowing dust.

Continue reading March 20 to March 26: This Week in Denver Weather History

March 13 to March 19: This Week in Denver Weather History

This Week In Denver Weather History
March 13 to March 19: This Week in Denver Weather History

Snow is one thing we have not seen a lot of in recent weeks but we still have time to gain ground. March is our snowiest month and our look back at this week in Denver weather history provides evidence of this. It was this week 13 years ago that the Denver was struck by a massive snowstorm – the costliest in Denver history. Also, six years ago, we saw significant snowfall this same week. Below is a complete look at those and other events.

From the National Weather Service:

9-19

In 1906…an extended cold and blustery period occurred with light snow totaling 14.4 inches over 11 consecutive days. The greatest amount of snow on a single day was 4.0 inches on the 15th. Only a trace of snow fell on the 12th and 17th. High temperatures were below freezing for the entire period. The coldest were 14 degrees on the 16th and 18 degrees on the 17th. Both readings were record low maximums for the dates. Low temperatures were mostly in the single digits. The coldest were 2 degrees below zero on the 16th and 5 degrees below zero on the 19th. Northeast winds were sustained to 22 mph on the 9th. North winds were sustained to 36 mph on the 10th…32 mph on the 13th…and 22 mph on the 15th.

12-13

In 2005…a winter storm brought heavy snow to the eastern foothills and western metro Denver overnight. Storm total snowfall included: 15 inches in Jamestown…13 inches near Blackhawk…11 inches in the foothills southwest of Boulder and near Nederland…10.5 inches at Gross Reservoir…9.5 inches at Eldorado Springs…9 inches at Roxborough Park… 8.5 inches near Longmont…8 inches in Boulder…7.5 inches at Centennial…7 inches in Louisville…3.3 inches at Denver Stapleton. At Denver International Airport…west winds gusted to 46 mph on the 12th before the passage of the cold front and north winds gusted 31 mph on the 13th.

12-16

In 1880…a protracted cold spell resulted in 8 temperature records being set. Record low temperatures for the date were set when the temperature dipped to 10 degrees below zero on the 13th and 14th…8 degrees below zero on the 12th and 15th…and 4 degrees below zero on the 16th. Daily record low maximum temperatures were set with 11 degrees on the 12th…12 degrees on the 13th…and 19 degrees on the 15th.

13

In 1973…northwest winds gusted to 51 mph at Stapleton International Airport. The strong winds were accompanied by virga and a very light snow shower.

In 1990…4 to 9 inches of snow fell across metro Denver with 8 to 16 inches in the foothills. Morrison reported 9 inches; Evergreen…11 inches; and Aspen Springs…14 inches from the storm. Blowing snow and reduced visibilities caused 2-hour delays at Stapleton International Airport where only 5.1 inches of snow fell and north winds gusted to 21 mph.

13-14

In 1996…a storm system moving across northern Colorado dumped heavy snow in the mountains and foothills and across metro Denver where snowfall ranged from 5 to 10 inches. A foot of new snow was measured at Nederland with 11 inches at Conifer. Snowfall totaled 8.0 inches at the site of the former Stapleton International Airport. Northeast winds gusted to 30 mph at Denver International Airport on the 13th.

13-15

In 1906…snowfall totaled 8.0 inches over downtown Denver.

14

In 1873…a brisk west wind blew a perfect gale during the afternoon and evening.

In 1898…northwest winds were sustained to 52 mph with gusts to 62 mph.

In 1899…west Bora winds were sustained to 50 mph with gusts to 60 mph.

In 1902…west winds were sustained to 40 mph with gusts to 48 mph.

In 1913…strong winds all day behind a cold front made for a blustery cold day as the high temperature climbed to only 25 degrees after a low of 19 degrees. Northeast winds were sustained to 51 mph with gusts as high as 60 mph. Only a trace of snow fell.

In 1920…west winds sustained to 43 mph with gusts to 50 mph warmed the temperature to a high of 67 degrees.

In 1923…heavy snowfall of 8.5 inches fell in downtown Denver. North winds were sustained to 25 mph.

In 1947…heavy snowfall totaled 5.8 inches in downtown Denver. Northeast winds were sustained to 17 mph.

In 1971…a wind gust to 51 mph was recorded at the National Bureau of Standards in Boulder.

In 1989…a strong pacific cold front produced west wind gusts to 59 mph at Stapleton International Airport.

In 2002…heavy snow developed in the foothills of Boulder County with 9 inches measured near Jamestown and 7 inches near Nederland. Snowfall totaled only 2.9 inches at the site of the former Stapleton International Airport. East winds gusted to 29 mph at Denver International Airport.

14-16

In 1908…a warm spell resulted in daily record high minimum temperatures on 3 consecutive days: 54 degrees on the 14th…52 degrees on the 15th…and 56 degrees on the 16th… Also the all-time record high minimum for the month of March. High temperatures ranged from 65 degrees on the 14th to 72 degrees on the 16th.

In 1983…a heavy wet snowstorm buried metro Denver with the foothills receiving the most. Conifer recorded 34 inches of snow with 4 feet measured at Coal Creek Canyon in the foothills northwest of Denver. The storm left 6 to 10 inches of snow across metro Denver. Boulder received 12 to 18 inches. Flight operations at Stapleton International Airport were limited to one runway for a time. Some roads and schools were closed…and power outages occurred when wet snow downed lines. Snowfall on the 15th and 16th totaled 7.2 inches at Stapleton International Airport where north winds gusted to 30 mph. Maximum snow depth on the ground was only 6 inches due to melting.

15

In 1902…northwest winds were sustained to 54 mph with gusts as high as 60 mph.

In 1920…southwest winds were sustained to 40 mph with gusts to 48 mph. The strong but cold downslope winds warmed the high temperature to only 35 degrees.

In 1935…strong winds howled across Boulder. At Valmont a wind gust to 60 mph was recorded. No damage was reported.

In 2006…strong winds ranging from 60 to 75 mph were reported in and near the foothills of Boulder County.

In Longmont… Two trees toppled by the strong winds damaged a car. Winds gusted to 75 mph at the National Center for Atmospheric Research Mesa Laboratory in Boulder. West winds gusted to 52 mph at Denver International Airport.

15-16

In 2000…heavy upslope snowfall occurred in and near the Front Range foothills and over the palmer divide to the south of metro Denver. Snowfall totals from the storm included: 17 inches at Idaho Springs; 16 inches at Aspen Springs; 12 inches in Boulder; 11 inches at Bailey… Chief Hosa…Coal Creek Canyon…Eldorado Springs…Evergreen… And near Morrison; 10 inches at Intercanyon…Ken Caryl Ranch…and near Nederland; 9 inches near Sedalia and in Wheat Ridge; and 8 inches in Arvada. Snowfall totaled 5.4 inches at the site of the former Stapleton International Airport. Northeast winds gusted to 28 mph at Denver International Airport on the 15th.

16

In 1902…north winds were sustained to 40 mph with gusts to 48 mph.

In 1908…the low temperature dipped to only 56 degrees…the record high minimum for the month.

In 1963…high winds struck metro Denver causing heavy damage. Winds gusted at 90 to 100 mph in Boulder. Wind gusts to 98 mph were recorded at Jefferson County Airport in Broomfield where hangars and several light planes were severely damaged. Wind gusts to 87 mph were recorded southwest of Littleton. A west wind gust to 55 mph was recorded at Stapleton Airport. Trees were uprooted…signs blown down…and utility lines disrupted. Damage totaled nearly 5 thousand dollars in Boulder alone.

In 1987…a storm dropped 3 to 6 inches of snow across metro Denver with higher amounts in the foothills. Most of the snow on the plains melted as it fell. Only 1.9 inches of snow fell at Stapleton International Airport where southeast winds gusted to 30 mph.

In 2015…the temperature at Denver International Airport reached 81 degrees. It broke the previous record of 75 degrees and also made it the earliest the 80 degree day on record. The previous 80 degree day record was the 18th.

17

In 1966…high winds caused extensive minor damage across metro Denver. A light plane was overturned at Stapleton International Airport where northwest wind gusts to 55 mph were recorded. Winds gusted to 56 mph at Table Mesa in Boulder

In 1989…strong winds raked metro Denver. West wind gusts to 49 mph were clocked at Stapleton International Airport.

In 2003…the first tornado of the season was sighted near Strasburg. The small landspout touched down briefly…but caused no damage.

17-18

In 1923…4.2 inches of snow fell over downtown Denver. Northwest winds were sustained to 45 mph with gusts to 49 on the 17th. Low temperature of zero degrees on the 18th was the lowest of the month that year.

In 1944…heavy snow fell across metro Denver. The storm started as rain on the 17th…but soon turned to snow. Snowfall amounts totaled 8.5 inches in downtown Denver and 11.0 inches at Stapleton Airport. The highest wind recorded during the storm was 23 mph on the 17th.

In 1961…a major winter storm dumped 10.7 inches of snow at Stapleton Airport. Most of the snow…9.7 inches…fell on the 18th. Winds were light.

In 1994…strong winds buffeted metro Denver. West winds gusted to 51 mph at Stapleton International Airport on the 17th. Other significant wind gusts included 85 mph atop squaw mountain south of Idaho Springs…and 82 mph at Rollinsville southwest of Boulder…both on the 18th.

In 1996…a second storm in less than 3 days dumped heavy snow in the mountains and foothills again…but snowfall amounts across metro Denver ranged from only 2 to 4 inches. The heavy snowfall resulted in several traffic accidents along I-25 and I-70…south and west of Denver respectively. The major accidents involved at least 30 cars and resulted in several minor injuries. The accidents closed both highways for a time. Snowfall totals included 13 inches at Evergreen and 10 inches at conifer. Snowfall totaled only 0.7 inch at the site of the former Stapleton International Airport. At Denver International Airport… North winds gusted to 28 mph on the 17th and 39 mph on the 18th.

17-19

In 1933…rain changed to snow on the evening of the 17th and continued through mid-day of the 19th. Snowfall totaled 5.6 inches with 0.83 inch of precipitation in the city. North winds were sustained to 38 mph with gusts to 46 mph on the 18th and to 30 mph with gusts to 43 mph on the 19th.

In 2003…one of the worst blizzards since historic records began in 1872 struck metro Denver with a vengeance. Heavy wet snow accumulating to around 3 feet in the city and to more than 7 feet in the foothills brought transportation to a near standstill. North winds sustained to 30 mph with gusts as high as 41 mph produced drifts to 6 feet in the city. The estimated cost of property damage alone…not including large commercial buildings…was 93 million dollars… Making it the costliest snowstorm ever. Mayor Wellington Webb of Denver said…”this is the storm of the century…a backbreaker…a record breaker…a roof breaker.” Two people died in Aurora from heart attacks after shoveling the heavy wet snow. The National Guard sent 40 soldiers and 20 heavy duty vehicles to rescue stranded travelers along I-70 east of gun club road. The heavy wet snow caused roofs of homes and businesses to collapse. The snow also downed trees…branches…and power lines. Two people were injured when the roofs of their homes collapsed. In Denver alone…at least 258 structures were damaged. In Arvada…a roof collapse at West Gate Stables killed a horse. Up to 135 thousand people lost power during the storm…and it took several days for power to be restored in some areas. Denver International Airport was closed…stranding about 4000 travelers. The weight of the heavy snow caused a 40-foot gash in a portion of the tent roof…forcing the evacuation of that section of the main terminal building. Avalanches in the mountains and foothills closed many roads…including I-70…stranding hundreds of skiers and travelers. Along I-70…an avalanche released by the Colorado department of transportation…blocked the interstate in both directions for several hours. Several residences between Baskerville and Silver Plume were evacuated because of the high avalanche danger. At Eldora Ski Area…270 skiers were stranded when an avalanche closed the main access road. After the storm ended…a military helicopter had to ferry food to the resort until the road could be cleared. The heavy snow trapped thousands of residents in their foothills homes in Jefferson County for several days. Two homes burned to the ground when fire crews could not reach the residences. Some schools remained closed well into the following week. The storm officially dumped 31.8 inches of snow at the site of the former Stapleton International Airport…the most snowfall from a single storm since the all-time record snowfall of 37.5 inches on December 4-5…1913. The storm made March 2003 the snowiest March on record…the 4th snowiest month on record… And the 5th wettest March on record. The 22.9 inches of snow on the 18th into the 19th was the greatest 24 hour snowfall ever recorded in the city during the month of March. The storm was also a drought-buster…breaking 19 consecutive months of below normal precipitation in the city. Snowfall across metro Denver ranged from 2 feet to more than 3 feet. The highest amounts included: 40 inches in Aurora…38 inches in Centennial and 6 miles east of Parker…37 inches at Buckley AFB…35 inches in southwest Denver…34 inches in Louisville… 32 inches in Arvada…31 inches in Broomfield and Westminster… And 22.5 inches in Boulder. In the foothills…snowfall ranged from 3 feet to more than 7 feet. Some of the most impressive storm totals included: 87.5 inches atop Fritz Peak and in Rollinsville…83 inches at cabin creek…74 inches near Bergen Park…73 inches northwest of Evergreen…72 inches in Coal Creek Canyon…70 inches at Georgetown…63 inches near Jamestown…60 inches near Blackhawk…55 inches at Eldora Ski Area…54 inches 8 miles west of Sedalia…and 46.6 inches at Ken Caryl Ranch. The storm was the result of a very moist…intense slow moving Pacific system which tracked across the four corners and into southeastern Colorado…which allowed deep easterly upslope flow to form along the Front Range.

Continue reading March 13 to March 19: This Week in Denver Weather History

March 6 to March 12: This Week in Denver Weather History

This Week In Denver Weather History
March 6 to March 12: This Week in Denver Weather History

March is Denver’s snowiest month and it is not unusual for us to receive heavy, wet snows during this time. Our look back at this week in Denver weather history highlights many such events.

From the National Weather Service:

4-6

In 1931…a cold front with north winds gusting to 35 mph on the evening of the 4th brought snowfall on the 5th into the early morning of the 6th. Heavy snowfall totaled 6.2 inches. Temperatures plunged from a high of 58 degrees on the 4th to a low of only 22 degrees by midnight…which was also the high reading on the 5th.

In 1983…a slow moving moisture laden storm produced heavy snow and rain. Two to three feet of snow fell in the foothills at Wondervu and Nederland. The southern portion of metro Denver was buried with 26 inches of snow in southeast Aurora…25 inches at Franktown…and 19 inches at Littleton. Snowfall totaled 18.7 inches at Stapleton International Airport with most of the snow…18.0 inches… Falling on the 5th. Brighton received only 11 inches of new snow. Boulder was drenched by rain and received no snow. Precipitation from the storm totaled 3.06 inches at Stapleton International Airport where north winds gusted to 28 mph. The heavy wet snow snapped many tree limbs…which fell on power and phone lines causing many outages. Numerous highways were closed. Two thousand travelers were stranded at Stapleton International Airport where only one runway was open for a time. Many flights were canceled. One home in Denver was severely damaged when its roof collapsed under the weight of the heavy snow. The 2.68 inches of precipitation on the 5th was the greatest calendar day precipitation ever recorded in the city during March. The 2.79 inches of precipitation on the 4th and 5th was the greatest 24 hour precipitation ever measured during March.

5-6

In 1935…3.0 inches of snow fell in downtown Denver. This was the only measurable snow of the month. Northwest winds gusted to 29 mph on the 5th.

In 1940…heavy snowfall totaled 9.1 inches over downtown Denver. North winds gusted to 22 mph.

In 2000…high winds developed in and near the foothills just prior to the passage of an upper level storm system moving in from the west. Peak gusts from the windstorm included: 88 mph at the National Center for Atmospheric Research near Boulder…82 mph in Boulder…80 mph at the national wind technology center south of Boulder…79 mph on Rocky Flats…and 71 mph in Golden Gate Canyon. Several power lines were downed causing a few brief outages. Thunderstorms produced southeast wind gusts to 51 mph at Denver International Airport on the 5th.

In 2003…high winds spread from the mountains down the eastern slopes. The highest wind gusts were 85 mph atop the Gamow Tower on the University of Colorado campus in Boulder and 70 mph at the national wind technology center on Rocky Flats west of Broomfield. West winds gusted to 44 mph at Denver International Airport on the 6th.

6

In 1900…west winds were sustained to 41 mph with gusts to 49 mph.

In 1920…the high temperature warmed to only 6 degrees… The all-time record low maximum temperature for the month of March. The same reading also occurred on March 10…1948.

In 1972…a wind gust to 100 mph was recorded at Jefferson County Airport in Broomfield. Winds gusted in Boulder at speeds of 50 to 65 mph. A light plane was overturned… And there was damage to other planes at Boulder airport. The roof of a garage was blown off…and a mobile home was overturned in Boulder. A truck was blown off the highway 15 miles east of Boulder. West winds gusted to 51 mph at Stapleton International Airport. The warm Chinook winds were responsible for setting a new record high temperature for the date of 75 degrees…exceeding the old record of 72 degrees set in 1925.

In 1990…a blizzard pummeled metro Denver. Snow fell at a rate of 2 to 3 inches an hour. Gusty north winds whipped the snow into 2- to 3-foot drifts by noon. During the afternoon many stores and schools closed. By rush hour sustained winds of 35 to 46 mph and gusts to 58 mph reduced visibilities to near zero and whipped the new snow into 3- to 4-foot drifts. Many residential as well as secondary and primary roads became impassable. I-25 and I-70 were closed in and out of the city. Road crews cleared drifts as high as 12 feet in southeast Boulder and northwest Adams counties. Several hundred rush hour commuters…including the state’s governor…were caught in the blizzard conditions along a 15-mile stretch of the Denver-Boulder turnpike. Many remained snowbound in their vehicles up to 8 hours until rescued by police and the National Guard. The highway remained closed until mid-day on the 7th. Shelters for stranded commuters and travelers were opened in Broomfield and Castle Rock. Many workers didn’t even try to go home…but filled downtown hotels to near capacity. By early evening…Stapleton International Airport was shut down after an airliner with 82 passengers aboard skidded off a runway. Snowfall totals for the storm varied from 18 to 50 inches in the foothills above 6 thousand feet…9 to 24 inches west of I-25…and 2 to 12 inches over eastern metro Denver. Snowfall from the storm totaled 11.8 inches at Stapleton International Airport where the maximum snow depth on the ground was 7 inches due to melting.

In 2004…very strong downslope winds developed in and near the eastern foothills…causing numerous traffic accidents and extensive property damage to roofs and aluminum sheds. Three semi-trucks were toppled by the strong winds near the I-70 and C-470 interchange. One of the trucks was carrying a modular home…while another was hauling hazardous material. I-70 had to be closed in both directions until the accidents could be cleaned up. Strong winds forced the closure of State Highway 93 between Golden and Boulder…when the road became icy and snowpacked from localized ground blizzards. Another semi- truck was blown over near the intersection of State Highways 72 and 93 atop Rocky Flats. Scattered power outages were reported across northern and western sections of metro Denver…affecting around 2000 residents. In Boulder…several pine trees were uprooted by the high winds.

6-7

In 1981…a storm dumped 4 to 8 inches of snow over higher elevations between Denver and Colorado springs. At Stapleton International Airport…north winds gusted to 16 mph and snowfall totaled only 2.5 inches.

In 1998…heavy snow fell over portions of metro Denver and the adjacent foothills. Snowfall totals included 11 inches at Chief Hosa…10 inches near Evergreen…8.5 inches in Broomfield…8 inches at Bailey…and 7 inches at both Standley Lake and Thornton. Elsewhere…snowfall across metro Denver ranged from 3 to 6 inches with 4.9 inches measured at the site of the former Stapleton International Airport. North winds gusted to 26 mph at Denver International Airport on the 7th. Several accidents occurred along area roads and highways when they became icy and snowpacked.

6-8

In 1932…snowfall totaled 6.3 inches in downtown Denver. Most of the snow…5.2 inches…fell on the 8th. Northeast winds gusted to 20 mph on the 6th.

7

In 1872…heavy rain started shortly after midnight and soon turned to sleet…which continued to just after sunrise…the ground at that time not even being white. At about 7:00 am the worst snow storm of the winter commenced and continued until 10:00 pm…snowing heavily nearly all the time. North winds averaged a sustained speed of 25 mph. About 8 inches of snow fell…but it drifted too much to obtain a direct measurement.

In 1901…northwest winds were sustained to 40 mph with gusts as high as 58 mph. The strong Chinook winds warmed the temperature to a high of 70 degrees.

In 1902…northwest winds were sustained to 45 mph with gusts to 53 mph.

In 1950…strong north winds at 40 mph with gusts as high as 60 mph produced a dust storm across metro Denver. At Stapleton Airport…blowing dust reduced visibility to as low as 1/4 mile for most of the day.

In 1972…northwest winds gusted to 51 mph at Stapleton International Airport. The Chinook winds warmed temperatures to a high of 64 degrees.

In 1984…a wind gust to 63 mph was recorded at Golden Gate Canyon west of Denver. West winds gusted to 39 mph at Stapleton International Airport.

7-8

In 1878…snow from the evening of the 7th until noon of the 8th totaled only 5 inches in downtown Denver. Apparent heavier snow over the plains along with strong winds drifted the snow into high drifts…which delayed trains for several days and caused a great loss of livestock. Melting of the snow caused a rise in Cherry Creek…which resulted in much damage. Precipitation from the storm totaled only 0.50 inch in Denver.

In 2000…high winds developed in and near the Front Range foothills…as well as parts of the northeast Colorado plains as another pacific storm system moved across the area. Several trees and power lines were downed near Blackhawk…Boulder…and in Coal Creek Canyon. About 30 homes in the Pinebrook Hills subdivision in Boulder were evacuated when downed power lines sparked a grassfire. The winds eventually shifted the fire onto itself…thus allowing firefighters to contain the two acre blaze. Several roofs were blown off barns…sheds… And garages. Two semi-trailers were blown over…one along C-470 between Golden and Morrison and another north of Denver on I-25. Wind gusts reached 101 mph on Rocky Flats…100 mph at the nearby national wind technology center…90 mph at Blackhawk and atop Blue Mountain…92 mph in south Boulder…73 mph in Coal Creek Canyon…72 mph in Golden…and 70 mph at Louisville. Northwest winds gusted to 45 mph on the 7th and to 49 mph on the 8th at Denver International Airport.

Continue reading March 6 to March 12: This Week in Denver Weather History

Thornton’s March preview: Our snowiest month also brings much warmer temps

The month of February was quite generous in terms of snowfall at the start.  However things quickly transitioned to drier and warmer conditions that lasted most of the rest of the month.

March usually offers healthy snowfall giving us an opportunity to add to those numbers.  While there is good snow potential in March, the month also typically brings much warmer temperatures.

March is historically Denver’s snowiest month and brings about 20% of our annual snowfall.  Heavy, wet spring snow storms can oftentimes bring the entire month’s snowfall total in one monstrous snow.

We also start the transition to spring and severe weather season and the month typically brings our first thunderstorms of the year.  Temperatures climb throughout the month and by the end our average daytime highs are near 60 degrees.

For a complete look at what lies ahead in March 2016, click here.

February 28 to March 5: This week in Denver weather history

This Week In Denver Weather History
February 28 to March 6: This week in Denver weather history

Wild weather is a fact of life in Denver and in Colorado in general.  We see that consistently in the history books and this week demonstrates that.  As usual we see high wind events and extreme cold.  Also notable is that as we enter the month of March, we start to see occurrences of those heavy, wet spring snows that can wreak havoc.

From the National Weather Service:

22-29

In 1960…heavy snowfall of 6.1 inches at Stapleton Airport on the 22nd and 23rd marked the beginning of a protracted cold spell which lasted until the end of the month.  The cloudy… Cold weather was accompanied by occasional light snow or flurries and fog.  New record low temperatures for the dates were set on the 24th thru the 29th with the lowest temperature of 11 degrees below zero on the 28th.  The seven consecutive days of low temperatures of zero or below had been exceeded in duration only 4 times previously.  New low maximum temperatures for the dates were set on the 23rd… 24th…and the 26th thru the 29th with the lowest maximum temperature of 8 degrees recorded on the 26th.
27-28 in 1918…heavy snowfall totaled 9.6 inches in downtown Denver.  Most of the snow…8.4 inches… Fell on the 27th.

In 1931…a major winter storm dumped 12.0 inches of heavy snowfall over downtown Denver.  This is the greatest 24 hour snowfall ever recorded during the month of February. North winds gusted to 18 mph on the 28th.

In 2006…a warm spell resulted in 3 temperature records. The high temperature of 73 degrees on the 27th equaled the record high for the date.  High temperature of 77 degrees on the 28th was a record high for the date and equaled the all time record high temperature for February first set on February 4…1890.

28

In 1896…northwest winds were sustained to 54 mph with gusts to 65 mph.  The winds warmed the temperature to a high of 56 degrees.  This was the second consecutive day of strong winds in the city.

In 1958…at Stapleton Airport… Snowfall totaled 5.3 inches and northeast winds gusted to 24 mph.

28-29

In 2012…another round of high winds occurred along the Front Range foothills. Peak wind gusts included: 84 mph at the National Wind Technology Center; 77 mph…3 miles south-southwest of Boulder; and 75 mph…3 miles southwest of Rocky Flats.  At Denver International Airport…west winds gusted to 36 mph on the 28th and 35 mph on the 29th.

28-1

In 1875…6 inches of snow fell from 3:15 pm on the 28th to 1:00 am on the 1st.  Precipitation for the two days was 0.50 inch.

29

In 1896…southwest winds were sustained to 41 mph with gusts to 60 mph.  This was the third consecutive day that strong winds occurred in the city.

In 1992…Chinook winds gusted to only 25 mph at Stapleton International Airport…but warmed the temperature to a high of 70 degrees…which equaled the record for the date first set in 1940.

In 2004…only light snow fell across metro Denver… While a blizzard raged across northeast Colorado.  Both I-70 and I-76 were closed to the east of Denver by winds gusting to 60 mph producing drifting snow to depths of 2 to 6 feet. Snowfall was only 1.6 inches at the Denver Stapleton site. North winds gusted to 41 mph at Denver International Airport.

29-1

In 1896…snowfall totaled 5.5 inches in the city.  Northeast winds gusted to 24 mph.

In 1948…snowfall totaled 5.9 inches in downtown Denver. North winds were sustained to 15 mph.

1

In 1904…west winds were sustained to 42 mph with gusts as high as 58 mph.  The Chinook winds warmed the temperature to a high of 67 degrees.

In 1906…snowfall was heavy and totaled 7.5 inches over downtown Denver.  Northeast winds were sustained to 37 mph.

In 1940…snowfall was heavy and totaled 7.7 inches in downtown Denver.

In 1943…6.0 inches of snow fell over downtown Denver. North winds were sustained to 19 mph.

In 1956…west-northwest wind gusts to 52 mph were recorded at Stapleton Airport.

In 1961…a wind gust to 65 mph was recorded at the Colorado building in downtown Boulder.  The high winds caused some minor damage.  Northwest winds gusted to 43 mph at Stapleton International Airport.

In 1974…a wind gust to 77 mph was recorded in Boulder. Southwest winds gusted to 37 mph at Stapleton International Airport.

In 2002…upslope conditions caused heavy snow to develop in and near the eastern foothills.  Snow totals included 14 inches at Eldorado Springs and near Genesee; 13 inches atop Lookout Mountain; 12 inches in Coal Creek Canyon; 10 inches in Nederland and just east of Boulder; 9 inches in Boulder and Morrison; and 8 inches at Broomfield…Erie…  Golden…Louisville… And Littleton.  Snowfall totaled 6.5 inches at the site of the former Stapleton International Airport.  Northeast winds gusted to 31 mph at Denver International Airport.

In 2014…a localized band of heavy snow over downtown Denver produced around one inch in less than 30 minutes and contributed to a chain of accidents in the northbound lanes of Interstate 25…between Logan Street and University Blvd. The combination of excessive speed and very poor driving conditions led the chain reaction; it involved 104 vehicles and resulted in one death along with 30 injuries. The interstate was closed for approximately 5 hours. At Denver International Airport…1 inch of snow was observed.

1-2

In 1969…heavy snowfall totaled 7.0 inches at Stapleton International Airport where north-northwest winds gusted to 18 mph.

In 1988…3 to 6 inches of snow fell over metro Denver. Snowfall totaled 3.2 inches at Stapleton International Airport where north winds gusted to 32 mph.

In 2003…localized heavy snow developed in the foothills of Jefferson County.  Storm totals included:  12.5 inches near conifer…11 inches in the foothills southwest of Boulder…and 10 inches near Genesee.  Only 0.9 inch of snow fell at the site of the former Stapleton International Airport.

2

In 1904…west winds sustained to 52 mph with gusts to 60 mph warmed the temperature to a high of 68 degrees. Snowfall was 0.4 inch in the evening.

In 2008…a storm system brought heavy snow to portions of the Front Range foothills; as well as localized blizzard conditions to areas along the palmer divide.  In the foothills of Jefferson and park counties storm totals included:  16 inches at Genesee…14 inches… 4 miles south of Evergreen; 13 inches…3 miles southeast of Pinecliffe; 12 inches…5 miles west-southwest of conifer; 10 inches at Evergreen and 5 miles west of Littleton. Along the Palmer Divide…south and southeast of Denver…  The combination of gusty northerly winds and snow caused localized blizzards.  Storm totals included:  7 inches… 2 miles east of Castle Rock; 6 inches…4 miles east of Parker and 2 miles northwest of Elizabeth; and 5 inches near Castle Pines.  The wind…gusting to 35 mph… Stirred up snow drifts from 1 to 3 feet in depth.  Northeast winds gusted up to 49 mph at Denver International Airport; and 2.0 inches of snow was observed at the former Stapleton International Airport.

2-3

In 1901…strong northwest winds raked the city for 2 days. On the 2nd…winds were sustained to 55 mph with gusts to 62 mph.  The Chinook winds warmed the temperature to a high of 72 degrees…a record maximum for the date.  On the 3rd…winds were sustained to 61 mph with gusts as high as 65 mph.  The high temperature was 59 degrees.

In 1964…heavy snowfall of 6.3 inches was measured at Stapleton International Airport.  East winds gusted to only 20 mph behind a cold front.

In 1978…5.0 inches of snowfall were measured at Stapleton International Airport where northeast winds gusted to 24 mph on the 2nd.  The passage of a cold Canadian front kept temperatures only in the teens and 20`s on the 2nd after a high temperature of 33 degrees shortly after midnight. The temperature…after a morning low of 3 degrees below zero…climbed to only 14 degrees on the 3rd… Setting a record low maximum for the date.

2-4

In 1963…heavy wet snow was accompanied by strong gusty winds across metro Denver.  Snowfall totaled 11.6 inches at Stapleton Airport where north winds gusting to 44 mph caused much blowing and drifting snow.  Hazardous driving conditions resulted in many traffic accidents.

In 1976…snowfall totaled 8.0 inches at Stapleton International Airport where…on the 4th… Northeast winds gusted to 31 mph reducing the visibility to as low as 1/4 mile.  Maximum snow depth on the ground was 7 inches.  Nine inches of snow were measured in Boulder.

Continue reading February 28 to March 5: This week in Denver weather history

March 2015 weather recap: Dry conditions, warm temperatures month’s biggest feature

The month of March was relatively uneventful and lacked any sort of real weather drama.  What was notable was the dry conditions and unseasonably warm temperatures that dominated for the most part.

March started out considerably colder than normal with the first five days of the month seeing temperatures around 20 degrees below normal.  A light shot of snow was recorded on the fourth of the month, a reading that would be our biggest snowfall for the period.

Temperatures began to turn warmer on the sixth with above normal readings recorded through the 16th of the month.  We even managed two 80+ degree days on the 15th and 16th.

Denver actually saw its earliest 80 degree reading in history on the 16th.  The previous earliest 80 degree reading occurred on March 18, 1907.

Unsettled conditions interrupted the warmth on the 25th with a light snowfall and colder temperatures.

We then bounced right back to the dry, mild conditions for the balance of the month.

Thornton’s average temperature for the month came in at 44.9 degrees.  This was well above the long term Denver average of 40.4 degrees.  Out at DIA, the Mile High City’s reading was very similar at 45.0 degrees.

Temperatures in Thornton ranged from a high of 82.6 degrees on the 16th down to a low of 9.2 degrees on the 5th of the month.  At the airport, Denver’s maximum for the month of 81 degrees came on the 16th with its lowest of 2 degrees on the 5th.

Denver officially broke two temperature records in March 2015.  On March 6th the high temperature of 79 degrees broke the record high for the date (previously 76 degrees set in 2013).  Also, on the 16th, the high temperature reading of 81 degrees was a record (previously 75 degrees in 2012).

In terms of precipitation, the rain bucket totals fell well short of the March average of 0.92 inch.  Here in Thornton a mere 0.49 inches was recorded while Denver saw quite a bit more with a measurement of 0.79 inches.

March is historically our snowiest month but that was certainly not the case in 2015.  Thornton snowfall totally only 2.8 inches and Denver was at 2.9 inches. Both were well below the average of 10.7 inches.

Click here to view Thornton’s March 2015 climate report.

Thornton, Colorado March 2015 Temperature Summary. (ThorntonWeather.com)
Thornton, Colorado March 2015 Temperature Summary. (ThorntonWeather.com)
Thornton, Colorado March 2015 Precipitation Summary. (ThorntonWeather.com)
Thornton, Colorado March 2015 Precipitation Summary. (ThorntonWeather.com)
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOULDER, CO
633 AM MDT WED APR 1 2015

...................................

...THE DENVER CO CLIMATE SUMMARY FOR THE MONTH OF MARCH 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1872 TO 2015

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              84   03/26/1971
 LOW              -11   03/28/1886
HIGHEST            81   03/16/2015                    73  03/09
LOWEST              2   03/05/2015                     4  03/02
AVG. MAXIMUM     58.9              54.4     4.5     55.8
AVG. MINIMUM     31.2              26.4     4.8     25.9
MEAN             45.0              40.4     4.6     40.9
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      2               1.9     0.1        2
DAYS MIN <= 32     12              23.6   -11.6       23
DAYS MIN <= 0       0               0.1    -0.1        0 
PRECIPITATION (INCHES)
 RECORD
  MAXIMUM         4.56   1983
  MINIMUM         0.03   2012 
TOTALS           0.79              0.92   -0.13     0.83 
DAILY AVG.       0.03              0.03    0.00     0.03 
DAYS >= .01         5               5.9    -0.9        9
DAYS >= .10         3               2.4     0.6        2
DAYS >= .50         0               0.3    -0.3        0
DAYS >= 1.00        0               0.1    -0.1        0
GREATEST
 24 HR. TOTAL    0.34   03/19 TO 03/19

SNOWFALL (INCHES)
TOTALS            2.9              10.7

DEGREE_DAYS
HEATING TOTAL     611               763    -152      739
 SINCE 7/1       4724              5202    -478     5258
COOLING TOTAL       0                 0       0        0
 SINCE 1/1          0                 0       0        0

FREEZE DATES
RECORD
 EARLIEST     09/08/1962
 LATEST       06/08/2007
EARLIEST                        10/07
LATEST                          05/05
........................................................

WIND (MPH)
AVERAGE WIND SPEED              9.9
RESULTANT WIND SPEED/DIRECTION   3/198
HIGHEST WIND SPEED/DIRECTION    36/260    DATE  03/23
HIGHEST GUST SPEED/DIRECTION    45/260    DATE  03/23

SKY COVER
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR           12
NUMBER OF DAYS PC             12
NUMBER OF DAYS CLOUDY          7

AVERAGE RH (PERCENT)     51

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       1
LIGHT RAIN                5     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       4
LIGHT SNOW                3     SLEET                      0
FOG                       7     FOG W/VIS <= 1/4 MILE      4
HAZE                      4

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

March 29 to April 4: This week in Denver weather history

This Week In Denver Weather History
March 29 to April 4: This week in Denver weather history

This week in Denver weather history is notable for the variety of conditions that can be experienced this time of year.  From hurricane force winds and heavy snow to more typical spring severe weather like tornadoes, all can be experienced this time of year.

From the National Weather Service:

27-29

In 1948…high winds raked Boulder. A wind gust to 75 mph was recorded at Valmont. Sustained winds in excess of 35 mph were estimated in Boulder. Minor damage was reported.

In 1961…heavy snowfall totaled 9.5 inches at Stapleton Airport over the 3 day period. Most of the snow…5.3 inches…fell on the 28th. Winds were generally light and gusted to only 22 mph from the north.

28-29

In 1891…rain changed to snow and totaled 9.7 inches in the city. Northeast winds were sustained to 12 mph with gusts to 28 mph on the 28th.

In 1910…a strong cold front brought much wind…rain…and and snow to the city. Rain on the 28th changed to snow early on the 29th. Snowfall totaled only 2.8 inches…but north winds were sustained to 50 mph on the 29th. Precipitation from the storm totaled 0.96 inch.

In 1994…moist upslope winds combined with an upper level system to dump 5 to 7 inches of snow along the eastern foothills and across metro Denver. Snowfall totaled 6.3 inches at Stapleton International Airport where northeast winds gusted to 39 mph. Thirteen inches of new snow were measured at the Eldora ski area west of Boulder.

28-30

In 1949…a major winter storm dumped 11.3 inches of snow over downtown Denver. Snowfall totaled 10.4 inches at Stapleton Airport. North to northeast winds were sustained to 17 mph.

In 1985…a slow moving snow storm moved across the state. Denver received only 4.0 inches of snowfall with amounts in the foothills totaling 1 to 2 feet. Still…this was enough snow in Denver to cause flight delays of up to 6 hours at Stapleton International Airport on the night of the 29th. East winds gusted to 28 mph on the 28th.

29

In 1887…west winds sustained to 44 mph warmed the temperature to a high of 62 degrees.

In 1921…post-frontal northeast winds were sustained to 46 mph with gusts to 52 mph.

In 1925…southeast winds were sustained to 46 mph with gusts to 48 mph. These were the strongest winds of the month that year. The winds warmed the temperature to a high of 72 degrees.

In 1934…a construction worker was killed by lightning as he walked with a shovel on his shoulder along Cherry Creek in the city. The thunderstorm produced light rain.

In 1967…a southwest wind gust to 52 mph was recorded at Stapleton International Airport. The warm Chinook winds warmed the temperature to 79 degrees equaling the record for the date.

In 1979…a tornado touched down 4 miles southwest of Parker… But caused no reported damage.

In 1998…four children attending a birthday party in Denver were injured when an apparent dry microburst produced a sudden strong wind gust which blew an inflatable playhouse they were occupying into a neighbor’s yard. The playhouse scraped the roof of the host’s two-story house…then landed in the adjoining yard. The children were treated for minor head injuries and cuts.

29-30

In 1938…overnight heavy snowfall was 6.3 inches over downtown Denver.

In 1982…strong winds buffeted metro Denver…breaking windows and damaging roofs. Wind gusts to 90 mph were recorded in Boulder and 51 mph at Stapleton Airport. The strong winds flattened a condominium under construction in Lakewood.

In 1991…1 to 6 inches of snow fell across metro Denver with the heaviest snow confined to the foothills. Six inches of snow was recorded at South Platte in the foothills southwest of Denver and 3 inches at Castle Rock. Snowfall totaled only 0.7 inch at Stapleton International Airport where northeast winds gusted to 33 mph on the 29th.

29-31

In 1970…snowfall totaled 6.0 inches at Stapleton International Airport. Heavy snow accumulation in Boulder on the 29th caused the collapse of a carport at an apartment building…damaging 11 automobiles. Northeast winds gusted to 24 mph at Stapleton International Airport.

30

In 1895…rain changed to sleet…then snow…and totaled 8.0 inches in downtown Denver. Strong post-frontal northeast winds were sustained to 48 mph with gusts to 61 mph. Temperatures hovered around 30 degrees all day.

In 1968…microburst winds associated with virga and brief light rain gusted to 46 mph at Stapleton International Airport.

In 1983…winds gusted to 82 mph at the National Center for Atmospheric Research in Boulder with peak gusts of 70 to 80 mph in the foothills. Minor damage occurred at a construction site and to some homes in Boulder. West winds gusted to 39 mph at Stapleton International Airport.

30-31

In 1896…heavy snowfall totaled 7.5 inches in downtown Denver. Northwest winds gusted to 26 mph.

In 1897…rain changed to snow during the early morning of the 30th and totaled 6.2 inches before ending during the late morning of the 31st. Northwest winds were sustained to 35 mph with gusts to 46 mph.

In 1929…heavy snowfall of 7.0 inches was recorded over downtown Denver. Northwest winds were sustained to 23 mph on the 30th.

In 1953…heavy snowfall totaled 8.6 inches at Stapleton Airport where northeast winds gusted to 23 mph.

In 1955…a vigorous cold front produced north winds at 40 mph with gusts as high as 54 mph at Stapleton Airport. Rain and snow showers and blowing dust accompanied the front. Snowfall totaled only 0.1 inch at Stapleton Airport on the 31st.

In 1988…snow began falling on the afternoon of the 30th and continued through the 31st…burying metro Denver. Twelve to 18 inches of snow fell in the foothills to the west of Denver and Boulder with 6 to 12 inches across the rest of metro Denver. The storm disrupted aircraft operations at Stapleton International Airport where snowfall totaled 7.1 inches and north winds gusting to 32 mph reduced the visibility to less than 1/4 mile at times…causing air traffic delays of 2 to 3 hours.

In 2000…heavy snow once again developed over the foothills and the higher terrain to the south of metro Denver. Snowfall totals from the storm included: 16 inches atop Squaw Mountain…15 inches near Rollinsville…13 inches near Evergreen…12 inches near Morrison…11 inches in Coal Creek Canyon…10 inches near Blackhawk and in Eldorado Springs…9 inches at Ken Caryl Ranch and larkspur… And 8 inches near Elizabeth. Snowfall totaled only 4.1 inches at the site of the former Stapleton International Airport. North winds gusted to 32 mph at Denver International Airport on the 30th.

In 2005…a strong spring storm intensified over the eastern plains of Colorado and produced near-blizzard conditions to the east and southeast of Denver overnight. North to northwest winds from 20 to 35 mph with gusts to 50 mph produced extensive blowing snow and caused near zero visibilities at times and snow drifts from 2 to 4 feet in depth. Snowfall amounts included: 12 inches near Bennett…8 inches around Castle Rock… 7 inches near Sedalia…and 6 inches near Parker. Only 0.3 inch of snow was reported at Denver Stapleton. At Denver International Airport…north winds gusted to 37 mph on the 30th and 36 mph on the 31st.

In 2014…on the evening of the 30th…high based showers and thunderstorms produced microburst winds over northern Jefferson…eastern Boulder and southwest weld counties. Peak wind reports included: 77 mph at white ranch open space; 72 mph…2 miles north of Longmont; 67 mph near Erie and firestone; 60 mph near mead and 59 mph…5 miles northwest of Henderson; with 53 mph at Denver International Airport. The wind downed power lines in Weld County which sparked a small fire. High winds then developed in the Front Range foothills and urban corridor through the morning of the 31st. Peak wind gusts included: 98 mph near gold hill; 77 mph near Eldorado Springs; 61 mph at Centennial Airport; 59 mph at Buckley Air Force Base; with 44 mph at Denver International Airport.

Continue reading March 29 to April 4: This week in Denver weather history