Category Archives: Thornton Weather

October 2017 top shots: Monthly photo slideshow

Old Glory and fall foliage along Colorado's Peak to Peak Highway. (Ed Dalton)
Old Glory and fall foliage along Colorado’s Peak to Peak Highway. (Ed Dalton)

October in Thornton can bring a wide variety of weather conditions, perfect for the photographer in all of us.

The month brings the changing of the colors at Colorado’s lower elevations and it is also is typically when we see our first freeze and first snow.

Couple those facts with our usual widely varying landscapes and wildlife and we have a month that is sure to bring in plenty of photo opportunities.

  • Slideshow updated October 26, 2017
  • To learn more about how to send your photo to us for inclusion in the slideshow, see below the slideshow.

Showcasing images captured by ThorntonWeather.com readers as well as some of our own, our monthly slideshow covers the entire gamut of weather-related imagery.

Sunsets, sunrises, wildlife and of course every type of weather condition are vividly depicted in images captured from yours and our cameras.

[flickr_set id=”72157685921181422″]

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!

Denver sets high temperature record for October 25

Record High TemperaturesWe figured we would tie or just break the high temperature record today and in fact we pretty much crushed it.  If you liked the warmth, don’t get too excited though as a big change is on the way.

The Mile High City’s official high temperature, as measured at Denver International Airport, topped out at 84 degrees today at 3:52pm.  This easily bested the previous record for the date of 80 degrees set in 2014, 2007 and 1959.  Average for today’s date is 62 degrees.

Here in Thornton, we were just a bit warmer with a high of 85 degrees coming at 3:07pm.

  • Stay up to date with Thornton’s weather: Be sure to ‘like’ us on Facebook, follow us on Twitter and add us to your Google+ circles.

That warmth though will soon be nothing but a memory as much colder weather is on the way tomorrow.  The high temp tomorrow will likely come at midnight and from there it will downhill.  By tomorrow evening the mercury readings will be at or even below 40 degrees.

Snow, unfortunately, will not amount to much from this system.  Current indications point to maybe some rain by late morning tomorrow followed by some snow in the afternoon and evening. Accumulations will likely be less than half an inch.

Details in our extended forecast here.

September 2017 weather recap: Month starts warm and dry, ends cool and damp

The month of September 2017 saw significant differences between the start and the end.  The first two-thirds of the month were extraordinarily dry with temperatures well above normal. The last 10 days brought a big change though with damp conditions and much cooler conditions.

High pressure dominated the region for the first few weeks of the month.  During this period when we normally see cooler temperatures, we instead saw highs oftentimes at or above 90 degrees and a couple of record high readings.  Additionally, it was exceedingly dry with Thornton only received 0.03 inches of precipitation through the first 22 days of the month.

Big changes arrived and the last nine days of the month stood it stark contrast to the rest of September. Low pressure and a series of disturbances brought much cooler temperatures and much-needed precipitation, including snowfall in the high country. Seven out of the last eight days saw below normal high temperature readings and enough precipitation fell to push us to just above normal.

Thornton’s overall average temperature for the month came in at 62.4 degrees.  This was a full degree cooler than Denver’s long term September average of 63.4 degrees.  Out at DIA where Denver’s official measurements are taken, it was a good bit warmer with an average temperature of 65.1 degrees.

Temperatures in Thornton ranged from a high of 98.5 degrees on the third and a low of 40.9 degrees on the morning of the 29th.  Denver saw their high of 97 degrees on the third as well and their coldest reading of 40 degrees on the 20th.

Two record high temperatures were officially set or tied for the Mile High City.  The high temperature of 97 degrees on the third tied the record high for the date.  A reading of 92 degrees on the 21st set a new record high for that date.

In terms of precipitation, Denver averages 0.96 inches during September.  Thornton tallied 1.05 inches in the rain bucket while Denver bested us with 1.26 inches.

Click here to view Thornton’s September 2017 climate report.

Thornton, Colorado’s September 2017 Temperature Summary. (ThorntonWeather.com)
Thornton, Colorado’s September 2017 Temperature Summary. (ThorntonWeather.com)
Thornton, Colorado’s September 2017 Precipitation Summary. (ThorntonWeather.com)
Thornton, Colorado’s September 2017 Precipitation Summary. (ThorntonWeather.com)

From the National Weather Service:

CLIMATE REPORT
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
244 AM MDT SUN OCT 1 2017

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

...THE DENVER CO CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1872 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              97   09/03/2017
                        09/06/2013
                        09/05/2013
 LOW               17   09/29/1985
HIGHEST            97R  09/03        91       6       93  09/05
LOWEST             40   09/20        35       5       37  09/10
AVG. MAXIMUM     79.0              78.5     0.5     82.3
AVG. MINIMUM     51.3              48.3     3.0     49.7
MEAN             65.1              63.4     1.7     66.0
DAYS MAX >= 90      9               3.4     5.6        6
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.8    -0.8        0
DAYS MIN <= 0 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 5.61 2013 MINIMUM T 1892 1944 TOTALS 1.26 0.96 0.30 0.28 DAILY AVG. 0.04 0.03 0.01 0.01 DAYS >= .01         6               6.5    -0.5        4
DAYS >= .10         2               3.3    -1.3        1
DAYS >= .50         1               0.6     0.4        0
DAYS >= 1.00        0               0.1    -0.1        0
GREATEST
 24 HR. TOTAL    0.83   09/23 TO 09/23           09/12 TO 09/12

SNOWFALL (INCHES)
RECORDS
 TOTAL             0.0
TOTALS            0.0               1.3

DEGREE_DAYS
HEATING TOTAL     122               125      -3       64
 SINCE 7/1        130               141     -11       79
COOLING TOTAL     131                76      55       99
 SINCE 1/1        880               764     116      861

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

WIND (MPH)
AVERAGE WIND SPEED              9.6
RESULTANT WIND SPEED/DIRECTION   2/165
HIGHEST WIND SPEED/DIRECTION    40/020    DATE  09/19
HIGHEST GUST SPEED/DIRECTION    48/030    DATE  09/19

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR            9
NUMBER OF DAYS PC             15
NUMBER OF DAYS CLOUDY          6

AVERAGE RH (PERCENT)     48

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       1
LIGHT RAIN               10     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       8     FOG W/VIS <= 1/4 MILE      1
HAZE                     10

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

Fall Colors 2017: Picks for the top Colorado Front Range spots for leaf peeping

Rocky Mountain National Park is a prime spot for viewing the fall foliage. (Tony's Takes)
Rocky Mountain National Park is a prime spot for viewing the fall foliage. (Tony’s Takes)

This time of year many folks start thinking about heading to the hills west of Denver in search of gold – fall foliage gold.

Where to go?  Below are five of ThorntonWeather.com’s favorite ones near Denver – plus a few further out and some bonus ideas.  After that, we will tell you where you can find a great website that provides regular updates on viewing conditions.

I-70 Corridor – If you’re looking for the easiest route, then this one is for you.  Simply head west on I-70 about 110 miles to Avon.  Between Vail and Avon, both sides of I-70 are lined beautifully with aspen.

Rocky Mountain National Park – One of the most popular summer destinations in the state is of course also a prime spot to view aspen in all their glory.  Once in the park head toward Bear Lake.  Glacier Gorge Junction provides a beautiful spot and you of course also get to enjoy all the splendor that Rocky Mountain National Park has to offer.  Extend your viewing by taking Trail Ridge Road all the way through to the west side of the park and the Grand Lake and Granby area.

Peak to Peak Highway – This little road trip can be a dual purpose trip – gambling and fall foliage viewing!  Take U.S. 6 through Clear Creek Canyon and then 119 through Blackhawk and Central City.  You can of course stop there if your wallet is fat enough and donate some money to the casinos.  From there continue on 119 toward Nederland.  Take highway 72 toward Ward and Allenspark.  There you will find more golden aspen than you can imagine, all with the Continental Divide nearby.

Colorado Fall Foliage - Average Date of Peak Aspen Colors. Click for larger view. (ThorntonWeather.com)
Colorado Fall Foliage – Average Date of Peak Aspen Colors. Click for larger view. (ThorntonWeather.com)

Poudre Valley Canyon –  Heading north on I-25 take Colorado 14 west and into Poudre Canyon and Roosevelt National Forest.  As you continue west you will come very near timberline as you come to Cameron Pass.  Amazing views abound!

Guanella Pass – This is a nice, relatively short drive from Denver.  From C470 take 85 through Bailey and Conifer, a nice drive unto itself.  When you come to the town of Grant, take the Guanella Pass Scenic and Historic Byway north to Georgetown.  The air is pretty thin along the way as you climb in excess of 11,500 views through the Pike and Arapahoe National Forests.

A couple other possibilities further from the Front Range:

Leadville / Aspen – From Denver take I-70 west to Copper Mountain and then Colorado 91 south over Freemont Pass to Leadville. Along the way there are plenty of viewing opportunities and Leadville is a nice little town to make a stop. From here you can take Highway 24 north back through Minturn and Vail. To extend the drive, take Highway 24 south to Colorado 82 and head toward Aspen. You can stop by the Maroon Bells in White River National Forest to view some of the most photographed mountains in Colorado.

Cottonwood Pass – From Denver take Highway 285 to Buena Vista. Head west on Main Street for seven miles then west on County Road 344 / Colorado 82. From there you start the climb up Cottonwood Pass with absolutely stunning views from the top. If you are up for it, you can continue down the west side of the pass into the Taylor Park area. Be forewarned though that the western half of the pass is unpaved and twisty.  Editor’s note: The west side of Cottonwood Pass is closed until Summer 2018 so that it can be paved.

Honorable mentions worth considering:

  • Boreas Pass between Breckenridge and Como (County Road 10)
  • Kenosha Pass on Highway 285 between Bailey and Fairplay
  • Independence Pass (Colorado 82 between Aspen and Twin Lakes)
  • Colorado 103 from Evergreen to Echo Lake. Throw in a drive up Mount Evans for a bonus.

If you do head out, be sure to send us your pictures for inclusion in our monthly photo slideshows!

For more information:

Record high temperature set for September 21

Record High TemperaturesIn our morning forecast we said it was possible we would break the record high temperature and indeed we did. In fact, we smashed it.

At 3:05pm the mercury at Denver International Airport where the Mile High City’s official records are kept topped out at 92 degrees.  This easily bested the previous record high for this date of 89 degrees set in 2015.

Here in Thornton we were just a touch cooler with our high hitting 91 degrees at 3:19pm.

Change is coming soon though with high temperatures this weekend being much cooler.  A trough and associated cold front will be moving through and that will translate to Saturday highs in the mid to upper 60s and only the upper 50s on Sunday.

Details in our extended forecast here.

August 2017 weather recap: Cooler than normal with near average precipitation

The last full summer month of the year has come to a close in a rather un-dramatic fashion.  Thornton saw a largely pleasant month with temperatures a good bit cooler than we usually expect to see. Precipitation was right near normal however, all of it fell during the first half of the month.

High pressure ruled for the first two days of the month but then the ridge broke down bringing about cooler temperatures on the 3rd of the month. The cool down didn’t last long and while the heat returned for a couple of days, we did finally receive some moisture on the 4th and 5th.

Cooler than normal temperatures returned on the 6th and lasted through the next 10 days.  The first half of the month also saw 10 days with measurable precipitation, our only precipitation for the month as the last half of the month saw none at all.

Dry and warm conditions were the rule of thumb for the last two weeks of the month.  Both Thornton and Denver saw six of the last nine days of the month bring high temperatures at or above 90 degrees.

Our average temperature for the month came in at 68.9 degrees.  This was a good bit below the long term Denver average for August of 72.5 degrees.  Out at DIA where the Mile High City’s official measurements are taken, the month was warmer than us but still cooler than normal with an average of 71.5 degrees.

Temperatures in Thornton ranged from a high mark reading of 94.9 degrees on the 29th of the month down to a low of 51.2 degrees on the 11th.  Denver saw a maximum reading of 95 degrees on the 19th of the month and a low of 51 degrees on the 4th.

In terms of precipitation, Denver averages 1.69 inches of precipitation during August.  Thornton wasn’t too far short of that with 1.43 inches.  However, all of that came during the first 15 days of the month. After that, we saw nothing.  Denver best us, and the average, with 1.86 inches in their rain bucket.

Click here to view Thornton’s August 2017 climate report.

Thornton, Colorado's August 2017 Temperature Summary. (ThorntonWeather.com)
Thornton, Colorado’s August 2017 Temperature Summary. (ThorntonWeather.com)

Thornton, Colorado's August 2017 Precipitation Summary. (ThorntonWeather.com)
Thornton, Colorado’s August 2017 Precipitation Summary. (ThorntonWeather.com)

CLIMATE REPORT
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
639 PM MDT FRI SEP 1 2017

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

...THE DENVER CO CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1872 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             105   08/08/1878
 LOW               40   08/26/1910
                        08/25/1910
                        08/24/1910
HIGHEST            95   08/19        96      -1       97  08/09
LOWEST             51   08/04        50       1       47  08/25
                                                          08/20
AVG. MAXIMUM     85.7              87.2    -1.5     86.3
AVG. MINIMUM     57.3              57.9    -0.6     56.2
MEAN             71.5              72.5    -1.0     71.2
DAYS MAX >= 90     10              11.5    -1.5       15
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.0     0.0        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         5.85   1979
 MINIMUM         0.02   1924
TOTALS           1.86              1.69    0.17     0.22
DAILY AVG.       0.06              0.05    0.01     0.01
DAYS >= .01         6               8.6    -2.6        4
DAYS >= .10         4               4.3    -0.3        1
DAYS >= .50         2               1.2     0.8        0
DAYS >= 1.00        0               0.3    -0.3        0
GREATEST
 24 HR. TOTAL    0.90   08/07 TO 08/07           08/24 TO 08/24

SNOWFALL (INCHES)
RECORDS TOTAL     0.0
TOTALS            0.0 2017          0.0


DEGREE_DAYS
HEATING TOTAL       8                10      -2       15
 SINCE 7/1          8                16      -8       15
COOLING TOTAL     216               244     -28      218
 SINCE 1/1        749               688      61      762

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

WIND (MPH)
AVERAGE WIND SPEED              9.2
RESULTANT WIND SPEED/DIRECTION   2/189
HIGHEST WIND SPEED/DIRECTION    49/320    DATE  08/04
HIGHEST GUST SPEED/DIRECTION    62/320    DATE  08/04

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR            7
NUMBER OF DAYS PC             21
NUMBER OF DAYS CLOUDY          3

AVERAGE RH (PERCENT)     50

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             13     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       4
LIGHT RAIN               12     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      10     FOG W/VIS <= 1/4 MILE      2
HAZE                      2

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

Denver sets a new record high temperature for September 3

Record High TemperaturesWhew! Is this September or July?  As expected the mercury kept on climbing today and did indeed get into record-setting territory.

At 1:53pm the temperature at Denver International Airport where the Mile High City’s official records are kept reached 97 degrees.  This easily bests the previous record high for the date of 95 degrees set in 1995.

Additionally the reading tied the record for hottest September temperature.  Six other times in the past the mercury reached 97 degrees during September occurring on September 1, 1995, September 4, 1960, September 4, 1995, September 5, 1899, September 5, 2013, and September 6, 2013.

Here in Thornton, we were actually warmer than DIA (a rarity).  Temperatures here topped out at 98.5 degrees at 1:20pm.

While above normal temperatures (but not record-setting) are expected for tomorrow, we do expect to see a significant cool down Tuesday then see things bounce back to readings a bit above normal for the balance of the week. See the extended forecast here.

Thornton’s September weather preview: A typically pleasant month

Following on what was a cool but dry August, some are certainly hoping for a bit of precipitation.  The month can bring plenty of rain and even our first snow of the season but more often than not, it is one of the most pleasant along the Colorado Front Range.

As temperatures start to drop, September usually reminds us that summer is at an end and fall is now here. Sunshine is predominant though as the month actually has the highest percentage of sun out of any month. Sunny days and clear, cool nights are the standard weather pattern for the month.

The month can bring extremes however.  We will of course forever remember 2013’s devastating floods brought on by record-setting rain.  Longtime residents might remember September 1971 which brought over 17 inches of snowfall.

Get a complete look at September’s weather and more details as to what we can expect this year here.

July 2017 weather recap: Thornton sees average temps but little precipitation

The month of July might have seemed quite hot but in fact mercury readings were right near normal. What likely caused the misconception is the fact that we saw far less than normal rain.

High pressure did dominate for much of the month and while monsoonal flow did bring rain to eastern Colorado, it largely missed our area.  The Palmer Divide and southeastern Colorado were beneficiaries for much of the month but for us it wasn’t until the last week that we saw relief.

Thornton’s average temperature for the month came in at 74.1 degrees.  This is almost exactly matches Denver’s long-term July average of 74.2 degrees.  Out at DIA where the Mile High City’s official temperatures are taken, it shows a far warmer month with an average of 76.4 degrees.

Temperatures here ranged from a maximum of 99.2 degrees on the 19th down to a low of 50.1 degrees on the morning of the 1st.  Out at the airport, their highest reading was actually 100 degrees seen on the 6th and again on the 19th.  The low out there was 51 degrees on the 1st.

On average Denver receives 2.16 inches of precipitation during July.  Both Thornton and Denver fell far short of that mark.  We managed to record 0.61 inches in our bucket during the month, more than half of which fell on the second to last day of the month. At DIA, Denver recorded 0.47 inches.

Click here to view Thornton’s July 2017 climate report.

Thornton, Colorado's July 2017 temperature summary. (ThorntonWeather.com)
Thornton, Colorado’s July 2017 temperature summary. (ThorntonWeather.com)
Thornton, Colorado's July 2017 precipitation summary. (ThorntonWeather.com)
Thornton, Colorado’s July 2017 precipitation summary. (ThorntonWeather.com)

From the National Weather Service:

CLIMATE REPORT
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
656 AM MDT TUE AUG 1 2017

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

...THE DENVER CO CLIMATE SUMMARY FOR THE MONTH OF JULY 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1872 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             105   07/20/2005
 LOW               42   07/04/1903
                        07/31/1873
HIGHEST           100   07/19        99      -5      102  07/10
                        07/06
LOWEST             51   07/01        51       9       51  07/12
AVG. MAXIMUM     91.5              89.4     2.1     92.0
AVG. MINIMUM     61.3              58.9     2.4     60.5
MEAN             76.4              74.2     2.2     76.2
DAYS MAX >= 90     20              16.0     4.0       22
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.0     0.0        0
DAYS MIN <= 0 0 0.0 0.0 0 
PRECIPITATION (INCHES) 
RECORD
 MAXIMUM 6.41 1965
 MINIMUM 0.01 1901 
TOTALS 0.47 2.16 -1.69 1.07 
DAILY AVG. 0.02 0.07 -0.05 0.03 
DAYS >= .01         6               8.3    -2.3        6
DAYS >= .10         3               4.3    -1.3        4
DAYS >= .50         0               1.4    -1.4        1
DAYS >= 1.00        0               0.7    -0.7        0
GREATEST
 24 HR. TOTAL    0.15   07/21 TO 07/21           07/01 TO 07/01
                                                          06/30 TO 07/01
                                                          07/01 TO 07/01

SNOWFALL (INCHES)
RECORDS TOTAL      0.0
 TOTALS            0.0 2017         0.0

DEGREE_DAYS
HEATING TOTAL       0                 6      -6        0
 SINCE 7/1          0                 6      -6        0
COOLING TOTAL     360               289      71      356
 SINCE 1/1        533               444      89      544

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

WIND (MPH)
AVERAGE WIND SPEED              9.6
RESULTANT WIND SPEED/DIRECTION   3/204
HIGHEST WIND SPEED/DIRECTION    45/120    DATE  07/15
HIGHEST GUST SPEED/DIRECTION    53/120    DATE  07/15

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR            6
NUMBER OF DAYS PC             21
NUMBER OF DAYS CLOUDY          4

AVERAGE RH (PERCENT)     45

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              9     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       3
LIGHT RAIN                9     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       3     FOG W/VIS <= 1/4 MILE      1
HAZE                      3

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

Thornton’s August weather preview: Forecasts indicate cooler, wetter weather

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.