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Climatology, Thornton Weather

July 2024 weather recap: Another warm one, precip comes in close to average

Thornton, Colorado's July 2024 temperature summary. (ThorntonWeather.com)
Thornton, Colorado’s July 2024 temperature summary. (ThorntonWeather.com)

Certainly, in our minds, July 2024 was a very warm one as it seemed like the 90+ degree days just kept on coming. Average temperatures did come in a good bit above normal. Precipitation wasn’t anything extraordinary and while it ended up close to average, the last half of the month was quite dry.

High pressure was the dominating force for the majority of the month with only intermittent breakdowns of the ridge. As a result, overall hot and dry conditions were the general rule. There were, however, just enough effects from some cold fronts to keep average temperatures relatively in check.

The last 10 days saw only one day with precipitation leading to dry conditions across the Colorado Front Range. This resulted in numerous wildfires in the foothills and smoke blanketing the area for several days.

Thornton’s average temperature for the month was 74.9 degrees. This was a good bit warmer than our running 18-year average for the month of 73.8 degrees. This made July 2024 the sixth warmest July over that period. Temperatures ranged from a maximum of 102 degrees on July 12th down to a low of 50.7 the morning of the 4th.

The Mile High City, as measured at Denver International Airport, came in a good bit warmer with an average mercury reading of 75.7 degrees. This was just a bit above Denver’s long term July average of 75.1 degrees. Denver set record highs on the 12th and 14th (102 and 101 degrees respectively) and tied the record high of 99 degrees on the 29th.

In terms of precipitation, Thornton received 1.74 inches during the month. Nearly half of that coming over two days on the 20th and 21st (0.80”). The total fell short of our running average for the month of 1.95 inches.

Denver’s official rainfall total for the month came in at 1.10 inches. This was well below the city’s July average of 2.14 inches.

Click here to view Thornton’s complete July 2024 climate summary report.

Thornton, Colorado's July 2024 precipitation summary. (ThorntonWeather.com)
Thornton, Colorado’s July 2024 precipitation summary. (ThorntonWeather.com)
Weather History

August 4 to August 10: This Week in Denver Weather History

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This Week in Denver Weather History

The beginning of August typically continues our monsoon season. This leads to increased chances for thunderstorms with heavy rain and the associated hazards that come with it. Our look back at this week in Denver weather history highlights the dangers of flooding, hail and lightning and even includes reference to grasshopper swarms being blown into the city.

From the National Weather Service:

3-4

In 1988…two inches of rain fell in 3 hours at both Morrison and Wheat Ridge. Thunderstorm rainfall totaled 0.80 inch overnight at Stapleton International Airport.

4

In 1889…southwest winds were sustained to 42 mph with an extreme velocity to 52 mph.

In 1924…0.01 inch of rain fell over downtown Denver. This along with the 0.01 inch of rainfall on the 10th was the only rainfall of the month…the driest August on record.

In 1963…heavy rains in the foothills above Idaho Springs caused mud and rock slides which closed U.S. Highways 6 and 40 for a time.

In 1976…hail to 1 inch diameter was reported 12 miles southwest of Denver. Hail to 3/4 inch in diameter was reported in Lakewood. Small hail…1/4 to 1/2 inch in diameter…fell at Stapleton International Airport.

In 1982…heavy rain poured through the roof of a clothing store in Aurora…causing widespread water damage. The roof was being repaired when the storm hit.

In 1983…hail up to one inch in diameter fell in Aurora where heavy rain produced street flooding.

In 1984…a Colorado state trooper was struck and injured by lightning in Northglenn.

In 1989…a microburst wind gust to 52 mph was recorded at Stapleton International Airport.

In 1997…lightning sparked a small fire in a home in Arvada… Causing minor damage. Several intersections in both Arvada and Westminster were flooded by thunderstorms producing heavy rain. Several cars were damaged by the high waters… And a number of businesses were flooded.

In 1999…flooding and flash flooding problems developed over metro Denver as slow moving thunderstorms dumped from 2 to 3.5 inches of rainfall in about 3 hours. Near the junction of I-25 and U.S. Highway 36…up to 4 feet of water flooded an auto dealership. About 45 cars were ruined. Damage estimates to the dealership alone totaled nearly a half million dollars. Sections of I-25 and U.S. 36 near the interchange were closed due to floodwaters. Floodwaters… Up to 5 feet deep…forced the evacuation of two mobile home parks in federal heights. Railroad tracks were washed out near Federal Blvd. and 64th avenue. Numerous power outages caused widespread blackouts in Thornton and Littleton. Along Massey Draw near Carr St. and Chatfield Reservoir…4 homes were flood damaged and portions of their backyards washed out. Widespread street flooding was also reported in Boulder where several buildings were flood damaged…including the University of Colorado Memorial Center.

In 2004…two golfers were shocked when lightning struck the eighth green of the golf course at Castle Pines north of Castle Rock. The two men suffered only minor injuries. Heavy thunderstorm rain from the same storm caused flash flooding. Floodwaters rushed across parts of U.S. Highway 85 near the entrance to the Castle Pines Golf Club. The traffic lanes were covered with up to 6 inches of running water.

In 2008…lightning sparked a grassfire that consumed 300 acres on the northern edge of Green Mountain…in Jefferson County. Gusty winds and very dry conditions allowed the wildfire to quickly spread and threaten several houses. Fortunately…only minor damage was reported to homes due to smoke and melted siding.

In 2018 a severe thunderstorm produced strong winds in and around Denver. A peak wind gust to 60 mph was observed near Firestone with a gust to 59 mph near Buckley Air Force Base. A peak wind gust to 40 mph from the southwest was observed at Denver International Airport.

5

In 1881…the low temperature cooled to only 76 degrees…the record high minimum temperature for the month.

In 1889…southwest winds were sustained to 42 mph.

In 1918…hail pelted the city…but was light and caused no damage. Precipitation totaled 0.25 inch. Northwest winds were sustained to 31 mph.

In 1964…lightning struck two boys in Denver while playing ball. One was treated and released from the hospital…but the other boy suffered second degree electrical shock and cardiac arrest and was hospitalized in critical condition for several days.

In 1969…two tornadoes touched down briefly in an open field southeast of Buckley Field in Aurora. No damage was reported.

In 1970…heavy rain in the Indian Hills area in the foothills west of Denver caused flash flooding…which washed out roads and damaged other property. Hail accumulated to a 3 inch depth with stones up to golf ball size; however…most of the damage was from flooding.

In 1982…2.38 inches of rain fell in an hour in Arvada… Causing minor flooding on Ralston Creek. In Westminster… 1 1/2 inches of rain fell…causing damage to streets and culverts. In addition…lightning caused some minor power outages across metro Denver.

In 1983…very heavy thunderstorms hit the southern portion of metro Denver. Heavy rainfall…as much as 2.89 inches in 38 minutes…caused widespread street flooding in southeast Denver. Two feet of water covered a section of I-25. Hail up to golf ball size accompanied the storm in Littleton and Englewood…along with 60 mph winds.

In 1984…a heavy thunderstorm drenched Littleton with up to 2.35 inches of rain in an hour…along with small hail that piled up to 2 inches deep. Flood waters were up to 4 feet deep in parts of town with many basements flooded. There were some power outages caused by lightning.

In 1990…a thunderstorm dumped 1.25 inches of rain in 12 minutes near tower and smoky hill roads in southeast Aurora. Minor street flooding was reported in the area.

In 1992…a pilot reported two funnel clouds near Cheery Creek Reservoir. Both dissipated quickly. Dime size hail fell near Franktown.

In 1994…one inch diameter hail fell near Strasburg. No damage was reported.

In 1999…a dog kennel east of Denver International Airport… Was flooded when a small dam…upstream in Elbert County… Was breached. The floodwaters…up to 4 feet deep…washed away some 6-foot fences and other small buildings. Ten of the 70 dogs boarded at the kennel drowned.

In 2002…a mail carrier was struck by lightning as he inserted a key into a multi-unit mailbox in Bailey. The shock knocked the man back against the mail truck. He suffered minor injuries. Lightning struck a residence in Commerce City. The resulting fire destroyed the roof of a detached garage and damaged much of its contents. Hail as large as 1 3/4 inches in diameter pelted Pine. One inch diameter hail fell in Arvada and southwest Denver. Heavy rain triggered a mudslide along U.S. Highway 285 near Bailey. Both lanes of traffic had to be closed until debris could be removed from the highway. Several residences in the Bailey and Glenisle areas were also flooded.

In 2004…heavy thunderstorm rainfall caused localized flash flooding in Virginia Canyon near Idaho Springs. Sections of the Virginia Canyon Road had to be closed due to the floodwaters.

In 2008…a severe thunderstorm produced large hail…up to 1 1/4 inches in diameter…northeast of Parker. Several automobiles were damaged.

6 Continue reading August 4 to August 10: This Week in Denver Weather History →

Climatology, Thornton Weather

Thornton’s August 2024 preview: Temps begin to cool, severe weather eases

Thornton's August Weather Preview
Thornton’s August Weather Preview

As summer vacations wind down and families prepare to send their kids back to school in August, Colorado weather also starts to settle down. The chances for severe weather decrease markedly during August and by the end of the month daytime temperatures are dropping quite a bit as well.

Find out more about what lies ahead with Thornton’s August weather here.

Photography, Thornton Weather

July 2024 top shots: Monthly photo slideshow

Thunderstorms move in on the evening of July 20, 2024. (David Canfield)
Thunderstorms move in on the evening of July 20, 2024. (David Canfield)

Colorado offers outdoor opportunities unlike any other state and while the summer heat settles in, photos of the amazing scenes across our state provide a view into why we love it here so much.

The weather this time of year has a pretty standard pattern of quickly warming temperatures followed by afternoon thunderstorms that can cool things down.  These storms sometimes provide a good bit of ‘excitement’ and are a prime photo subject.

  • Slideshow updated July 31, 2024

Recreationalists head outdoors and take advantage of urban, suburban and rural opportunities.  As they do, our abundant wildlife that is found just about anywhere comes into focus.

Showcasing images captured by ThorntonWeather.com readers as well as some of our own, our monthly slideshow covers the entire gamut of weather and nature related imagery.   Sunsets, sunrises, wildlife and of course every type of weather condition are vividly depicted.

To learn more about how to send your photo to us for inclusion in the slideshow, see below the slideshow.


What is missing in the slideshow above?  Your photo!

Our monthly photo slideshow is going to feature images that we have taken but more importantly images that you have captured.  The photos can be of anything even remotely weather-related.

Landscapes, current conditions, wildlife, pets, kids.  Whimsical, newsy, artsy.  Taken at the zoo, some other area attraction, a local park, a national park or your backyard.  You name it, we want to see and share it!

Images can be taken in Thornton, Denver or anywhere across the extraordinary Centennial State.  We’ll even take some from out of state if we can tie it to Colorado somehow.

We’ll keep the criteria very open to interpretation with just about any image eligible to be shown in our slideshows.

What do you win for having your image in our slideshow?  We are just a ‘mom and pop’ outfit and make no money from our site so we really don’t have the means to provide prizes.  However you will have our undying gratitude and the satisfaction that your images are shared on the most popular website in Thornton.

To share you images with us and get them included in the slideshow just email them to us or share them with ThorntonWeather.com on any of the various social media outlets.  Links are provided below.

So come on, get those camera’s rolling!

Weather History

July 28 to August 3: This Week in Denver Weather History

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This Week in Denver Weather History

Monsoonal moisture oftentimes streams into Colorado this time of year leading heavy rain and dangerous lightning. Our look back at this week in Denver weather history features many flooding events caused by the moisture and even some tornadoes.

From the National Weather Service:

13-5

In 2008…a streak of 24 consecutive days of 90 degrees shattered the previous record of 18 consecutive days established in 1901 and 1874. Ironically…no new single day record high temperatures were set in the month of July. In August however…a record of 104 degrees was set on the 1st…and another record of 103 degrees was set on the 2nd. In addition…a record low min of 70 degrees was set on August 2nd.

18-2

In 1987…a streak of 16 consecutive days of 90 degrees ranked 4th on the list of hot streaks. The record of 24 consecutive days was established in the summer of 2008.

27-31

In 1956…96 percent of the total precipitation for the month of July occurred over the last five days of the month. Heavy thunderstorms produced 4.00 inches of rainfall at Stapleton Airport. This amount of precipitation in 5 days or less had been exceeded only 3 times in previous record. The last time had been in December of 1913 as snow. Considerable property damage occurred across metro Denver from flooding.

28

In 1882…intense thunderstorm lightning struck a number of places in the city…but no significant damage was reported.

In 1910…heavy thunderstorm rainfall totaled 2.21 inches in downtown Denver. Rainfall was 1.11 inches in an hour during the early afternoon.

In 1922…heavy rainfall to the south of Denver caused Cherry Creek to rise to the top of the retaining walls in the city. The creek did not flood; however…the large volume of water discharged into the South Platte River did inundate a few blocks of Globeville. Flooding also occurred along bayou creek near Franktown to the south of the city.

In 1923…thunderstorm winds were sustained to 38 mph with gusts to 52 mph.

In 1957…iridescent cirrocumulus clouds of unusual formation and brilliant color…oriented from southwest to northeast over metro Denver…were sighted by U.S. Weather Bureau observers at Stapleton Airport shortly after noon.

In 1966…heavy rains from a severe thunderstorm caused flash flooding on Deer Creek…southwest of Littleton. A child was injured when washed from a car caught in the flood waters. The flooding damaged property along the creek. Strong winds damaged several houses in suburban Littleton.

In 1970…a microburst wind gust to 52 mph was recorded at Stapleton International Airport.

In 1974…a tornado was sighted just east of Buckley Field in Aurora. No damage was reported.

In 1982…up to 2.50 inches of rain drenched an area just southwest of Denver in 30 minutes. This was the second day of heavy rain across portions of metro Denver.

In 1984…1.25 inches of rain fell in 45 minutes in Arvada. Minor flooding occurred on bear creek after a small dam broke.

In 1989…lightning killed two men in Arvada. They were taking wash from a clothesline when a bolt hit the older man…39… Killing him instantly. The bolt then traveled along the line…which was stretched between 2 tall trees…and hit his 26-year-old brother who died the next day.

In 1996…several weak tornadoes developed along a thunderstorm outflow boundary that moved into southern weld…northern Jefferson…and Adams counties. The tornadoes sighted near Bennett…Barr Lake…and in Arvada caused little damage. Strong thunderstorm winds downed several trees in the city of Denver and toppled several trees 7 miles west of Arvada where shingles were blown off several houses. Thunderstorm wind gusts reached 58 mph in Broomfield.

In 1997…a weak tornado touched down briefly in Parker… Damaging a greenhouse. Twenty pieces of the fiberglass roof were ripped away. Heavy rainfall in the foothills washed out some culverts in the Pine and Conifer areas. Heavy rainfall spread over the plains with 4 to 7 inches reportedly falling near Hudson. Several county roads were washed out between Fort Lupton and Hudson. Several basements in the area were flooded up to the ceiling. Standing water…up to 3 feet deep…was reported in some backyards. Later in the evening…a flash flood killed 5 people and injured 40 others in two mobile home parks in Fort Collins. The torrential rainfall also caused extensive damage on the Colorado state university campus. Thunderstorm rainfall totaled 0.80 inch at Denver International Airport and 1.09 inches at the site of the former Stapleton International Airport.

In 1999…heavy rainfall…up to 3 inches an hour…triggered a massive rock and mudslide along I-70 near Bakerville. The slide area was about 200 feet wide and 20 feet deep. Several other smaller slides were also reported along the highway. As a result…I-70 was closed for nearly 25 hours in both directions until the debris could be cleared from the roadway. The blockage of I-70 was one of the longest in the history of the highway in Colorado. A severe thunderstorm produced a wind gust to 64 mph at Denver International Airport. The storm also produced 1.56 inches of rain and briefly reduced the visibility to 1/4 mile.

In 2004…a severe thunderstorm produced hail as large as 1 inch in diameter in Thornton.

In 2010…a wet microburst produced very heavy rain and torrential hail in Boulder County…in the vicinities of caribou…Nederland and Eldora. Flash flooding washed out sections of County roads 126 and 128 near caribou. Several large Boulders had fallen across the roadways. Considerable flooding was reported in Nederland. Water was also observed running across County Road 130…between Eldora and Nederland. The hail had accumulated up to 8 inches deep near Eldora. Several vehicles were stuck in the ice…forcing the temporary closure of CR130 and the Lake Eldora Ski Road until snowplows could clear away the hail. Lightning strikes caused minor damage to two local businesses in Nederland. At Denver International Airport…a thunderstorm produced 0.30 inches of rain along with a peak wind gust to 38 mph.

In 2012…a tornado touched down briefly at the southeast corner of Mt. Evans near Lincoln Lake. The estimated elevation where this tornado touched down was near 12500 feet. This would make this tornado one of the highest ever observed in the U.S.

In 2014…two weak landspouts touched down; one near Ft. Lupton and the other on the southwest side of the Rocky Mountain Arsenal Wildlife Refuge. No damage was reported. A strong thunderstorm wind capsized a boat in Barr Lake. All three occupants made it to shore with no injuries.

In 2016…severe thunderstorms in western Adams and east central Jefferson Counties produced large hail near Lakewood…Golden and South Glenn. The hail ranged from 1 to 1 1/2 inches in diameter.

28-30

In 1889…dense smoke from forest fires in the mountains obscured the sun over the city for three days.

In 1971…a vigorous cold front late on the 28th produced northeast wind gusts to 39 mph and record breaking cold temperatures on the 29th and 30th. The temperature dipped to 47 degrees on the 29th and 43 degrees on the 30th… Setting record minimums for the dates. Upslope cloudiness along with rain and fog early on the 29th helped set a record low maximum temperature of 58 degrees for the date.

29

In 1878…a total eclipse of the sun was observed at 2:20 pm. From before to during the eclipse…the temperature in the sun fell from 114 degrees to 82 degrees…while the shade temperature fell from 89 degrees to 83 degrees.

In 1880…heavy thunderstorm rain and hail flooded streets and ditches.

In 25 minutes…0.76 inch of rain fell on the city along with large hail to 3/4 inch in diameter. There were no strong winds with the storm.

In 1890…a thunderstorm produced sustained west winds to 48 mph with gusts to 60 mph…but only 0.01 inch of rain.

In 1956…heavy rain and hail fell over west and north Denver.

In 1964…hail to 3/4 inch in diameter fell at Lowry Airfield.

In 1978…a small tornado was sighted just east of Parker. No damage was reported.

In 1989…heavy rain drenched all areas of the Front Range… Both in the foothills and adjacent plains. Amounts of 1 to 3 inches were general over the area. Damage was confined to a few minor road washouts and some street…basement…and crop flooding. Thunderstorm rainfall totaled 1.44 inches at Stapleton International Airport where north winds gusted to 43 mph. Lightning struck a 250 thousand dollar home near Nederland and started a fire which destroyed all of it except two garages. Lightning started a fire in a home in Evergreen. It reached the house by hitting a tree…then traveling through a metal clothesline strung between the tree and the building.

In 1995…thunderstorm winds gusted to 59 mph in Brighton. Thunderstorm winds from the south-southeast gusted to 41 mph at Denver International Airport. High temperature of 99 degrees was a new record maximum for the date in Denver.

In 1997…heavy rain caused flooding in an apartment building in Westminster. Several residents had to be evacuated from their apartments. A woman in Aspen Park received minor injuries…when lightning passed through an office window and struck her. She suffered temporary blindness for about 15 minutes.

In 2003…hail as large as 1 inch in diameter pelted Conifer… Highlands Ranch…and Franktown.

29-30

In 1997…heavy rain caused flooding and flash flooding in central portions of Adams and Arapahoe counties. Two homes were extensively damaged when water flooded the basements and adjacent pasture area in Strasburg. Water 4 to 5 feet deep had pooled in the lower lying areas of the town. A portion of quincy road was closed in Arapahoe County when 4 feet of water covered the roadway. Rainfall totaled 3.06 inches at Denver International Airport…establishing a new record for 24-hour rainfall in July. The previous record was 2.42 inches set in 1965 on the 24th and 25th.

Continue reading July 28 to August 3: This Week in Denver Weather History →

Weather History

July 21 to July 27: This Week in Denver Weather History

This Week in Denver Weather History

As we continue in what is the hottest time of the year, we also begin to enter the monsoon season. Our look back at this week in Denver weather history shows that this can bring a wide range of severe weather. Most common are heavy rains which can lead to flooding but dangerous and damaging lightning and hail and even tornadoes are possible.

From the National Weather Service:

7-25

In 1934…a streak of 15 consecutive days of 90 degrees ranked 5th on the list of hot streaks. The record of 24 consecutive days was established in the summer of 2008.

13-5

In 2008…a streak of 24 consecutive days of 90 degrees shattered the previous record of 18 consecutive days established in 1901 and 1874. Ironically…no new single day record high temperatures were set in the month of July. In August however…a record of 104 degrees was set on the 1st…and another record of 103 degrees was set on the 2nd. In addition…a record low min of 70 degrees was set on August 2nd.

18-2

In 1987…a streak of 16 consecutive days of 90 degrees ranked 4th on the list of hot streaks. The record of 24 consecutive days was established in the summer of 2008.

19-23

In 2005…the high temperature climbed above 100 degrees on each of the 5 days with readings of 101 on the 19th…105 on the 20th…104 on the 21st…and 102 on both the 22nd and 23rd. A new record maximum temperature for the month of July of 105 degrees was set on the 20th…which also equaled the all-time record maximum for Denver of 105 degrees first set on August 8th in 1878. Daily maximum temperature records were set on each day…and the 5 day period equaled the record for the most consecutive days of 100 degrees or more first set from July 4th through 8th in 1989. The intense heat resulted in a high use of electricity for cooling purposes. The demand for electric power exceeded the supply and rolling black-outs… Each lasting about an hour…were scheduled across metro Denver during the afternoons and early evenings.

20-23

In 1961…unusually cool weather for July resulted in several temperature records. Record minimum temperatures were set or equaled on each day with readings of 51…51…49… And 49 degrees. High temperature of only 64 degrees on the 21st was a record low maximum for the date.

20-25

In 1965…heavy showers and thunderstorms doused metro Denver with significant rain each day. Rainfall for the six days totaled 5.16 inches at Stapleton International Airport. Massive rainfall occurred on the 20th…21st…and 25th… Flooding streets and basements and causing streams to overflow. The heaviest rainfall…2.05 inches…at Stapleton International Airport occurred on the 25th.

21

In 1879…lightning struck a house in north Denver. The bolt struck the center of the roof driving part of it into the house and scattered shingles all over the yard. Furniture in the house was heavily damaged…but none of the nine residents were injured other than being stunned. The noise sounded as if a cannon had been exploded. Rainfall was only 0.02 inch downtown.

In 1921…northwest winds were sustained to 42 mph with gusts to 48 mph.

In 1943…a severe thunderstorm during the evening caused the death of a man whose truck skidded on a muddy roadway on a steep hill and overturned pinning him underneath. Several small fires were started by the lightning…and electrical wires were downed. No serious property damage was reported… But firemen answered 19 alarms in 2 hours. One person was injured by lightning.

In 1965…a funnel cloud was sighted in the northern portion of Denver. Later…4 or 5 funnel clouds were sighted about 15 miles north of Stapleton International Airport. Heavy rain accompanied by hail washed away part of a city street and caused other flooding in central city. There were heavy showers and some damage from lightning in both Denver and Boulder. Marble to golf ball size hail fell 10 miles northwest of Stapleton Airport.

In 1966…heavy thunderstorm rains flooded streets and basements across metro Denver.

In 1973…a tornado touched down briefly 2 miles northeast of Parker…causing minor damage. Funnel clouds were also sighted 3 miles northeast of Sedalia…11 miles south southeast of Stapleton International Airport…and near Parker. Hail to 3/4 inch in diameter fell over the western suburbs of Denver.

In 1974…heavy thunderstorm rains caused flash flooding in metro Denver. Rainfall totaled 1.26 inches at Stapleton International Airport.

In 1976…heavy thunderstorm rains occurred across south metro Denver with 1.75 inches of rain recorded in 40 minutes in southeast Aurora and 2.00 inches in 20 minutes at Cheery Creek Reservoir. A funnel cloud was sighted by the public east of Arapahoe County airport…now Centennial Airport.

In 1981…the temperature reached 100 degrees…setting a new record high for the date.

In 1983…downpours drenched the Front Range where amounts of 1 to 2 inches were common. The heaviest reported rainfall was 2.36 inches in a 6-hour period at Parker where hail to 3/4 inch and wind gusts as high as 75 mph occurred. Up to golf ball size hail fell in the Parker and Castle Rock areas; wind gusts to 75 mph were recorded in Castle Rock.

In 1993…thunderstorm winds toppled a 3 story high Russian olive tree in Boulder. The tree barely hit and only slightly damaged a parked car.

In 1995…thunderstorm winds from the west gusted to 55 mph at Denver International Airport.

In 2002…heavy thunderstorm rainfall caused flash flooding in the Hayman fire burn area. South Deckers Road…State Highway 126…was closed when 4 feet of water inundated a section of the roadway. The U.S. Forest Service had to remove 40 truckloads of sediment to reopen the road. Also…heavy debris flow washed out a secondary service road in southwest Douglas County. Hail as large as 3/4 inch in diameter fell near Bennett.

In 2011…lightning struck a home in Arapahoe County and caused substantial fire damage. Five people were in the home but no one was injured. There was structural damage to both the interior and exterior of the residence.

22 Continue reading July 21 to July 27: This Week in Denver Weather History →

Site News, Thornton Weather

Thornton Weather’s weather station is nearing its end of life

The time is coming… Our Davis Instruments VP2+ weather station has served us well for 17+ years. Sadly, despite many parts replacements, it is showing its age and we are going to need to get a new unit soon.

As this is a professional-level weather station to ensure accuracy and reliability, you can imagine it is not cheap. Normally we would not ask this but, in the past, our supporters’ donations have helped us maintain and upgrade the station and we are hoping you might consider helping us keep Thornton’s longest running, most reliable weather station going.

To learn more, please see here.