February in Colorado typically brings to an end an extended period when average temperatures are at their lowest. Winter begins to loosen its grip and temperatures get warmer but precipitation is not a particularly common event during the month.
Thus far our snow season has been relatively dismal with the seasonal total in Thornton more than 10 inches below average. In the high country, the snowpack is not faring much better. February is only our sixth snowiest month so we may not see much snowfall for the balance of the month.
Temperatures however do usually see a nice rebound during the month. Average high temperatures climb from an average of 44 degrees at the start to 50 degrees by the end of February.
January 15, 2018 – A gorgeous Bald Eagle takes flight in Adams County. (Joyce DeAnda Ginther)
As one of our coldest months, January can be a good month to hibernate inside and avoid the outdoors. But, like any month in Colorado, photo opportunities abound as our monthly slideshow demonstrates.
Snow is not normally dominant in the month but when it does fall, it can create a beautiful blanket of white. Throw in the amazing sunrises and sunsets we receive in the middle of winter as well as wildlife and a host of other subjects and the imagery can be quite beautiful and stunning.
Slideshow updated January 31, 2018
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=”72157690622795841″]
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.
We knew today was going to be unseasonably warm and the numbers backed that up.
The National Weather Service reports that Denver’s high temperature today, as measured at Denver International Airport, topped out at 65 degrees. That matches the record high temperature for the date last set in 1920.
Here in Thornton, we were a bit cooler with a high of 62.8 degrees.
With high temperatures tomorrow expected to reach similar heights, we may set another record Friday. The record high for January 19 is 68 degrees last set in 1986.
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With the last part of December fresh in our minds, it would not be surprising to think of the month as a cold one. However, reaching back, if you recall, we actually enjoyed a lot of mild days earlier and very little precipitation. As a result, December 2017 goes into the books as a warm and dry one.
The first half of the month was notable for stable conditions yielding above normal temperatures and no precipitation. Denver set a record high temperature on the 12th of 69 degrees which was also our warmest reading of the month.
Not long after the warmth came the cold. Arctic air infiltrated from the north on the 21st resulting in much cooler temperatures and a pre-Christmas snow. This was followed by another snow on the 23rd that lasted into the early morning hours of Christmas Eve. Single digit lows were seen for seven days from the 21st to the 27th.
We then saw a brief warmup for the 27th to the 29th but that was short lived. We closed out the month with the final two days’ high temperatures failing to reach even the freezing mark.
On average, Denver’s temperature for December comes in at 30.0 degrees. Both Thornton and the Mile High City came in above that with average readings of 31.8 degrees and 33.2 degrees respectively.
Thornton saw its warmest temperature reading of 69.1 degrees on the 12th and its coldest of 1.6 degrees on the morning of the 27th. Denver’s warmest reading of 69 degrees also came on the 12th and its coldest of -4 degrees came on the 24th.
In terms of precipitation, Thornton saw a mere 0.16 inch of liquid in its bucket for the month. Denver was a bit better with 0.21 inches. Both were below the long-term Denver average of 0.35 inches.
December on average brings 8.5 inches of snowfall to Denver. Thornton fell well short of that with 4.7 inches and Denver just a bit less with 4.0 inches.
Thornton, Colorado’s December 2017 temperature summary. (ThorntonWeather.com)Thornton, Colorado’s December 2017 precipitation summary. (ThorntonWeather.com)
CLIMATE REPORT
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
645 AM MST MON JAN 1 2018
...................................
...THE DENVER CO CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 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 79 12/05/1939
LOW -25 12/22/1990
12/24/1876
HIGHEST 69 12/12 62 7 65 12/30
LOWEST -4 12/24 -4 0 -15 12/17
AVG. MAXIMUM 48.3 42.8 5.5 42.7
AVG. MINIMUM 18.0 17.1 0.9 12.9
MEAN 33.2 30.0 3.2 27.8
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 4 5.8 -1.8 6
DAYS MIN <= 32 28 29.4 -1.4 30
DAYS MIN <= 0 1 2.0 -1.0 4
PRECIPITATION (INCHES)
RECORD
MAXIMUM 5.21 1913
MINIMUM 0.00 1881
TOTALS 0.21 0.35 -0.14 0.78
DAILY AVG. 0.01 0.01 0.00 0.03
DAYS >= .01 4 4.1 -0.1 6
DAYS >= .10 1 1.1 -0.1 2
DAYS >= .50 0 0.1 -0.1 0
DAYS >= 1.00 0 0.0 0.0 0
GREATEST
24 HR. TOTAL 0.10 12/23 TO 12/23
STORM TOTAL 0.10 12/23 TO 12/23
SNOWFALL (INCHES)
RECORDS
TOTAL 57.4 1913
TOTALS 4.0 2017 8.5
DEGREE_DAYS
HEATING TOTAL 979 1086 -107 1146
SINCE 7/1 2150 2468 -318 2042
COOLING TOTAL 0 0 0 0
SINCE 1/1 881 769 112 878
FREEZE DATES
RECORD
EARLIEST 09/08/1962
LATEST 06/08/2007
EARLIEST 10/07
LATEST 05/05
.................................................................
WIND (MPH)
AVERAGE WIND SPEED 10.0
RESULTANT WIND SPEED/DIRECTION 2/214
HIGHEST WIND SPEED/DIRECTION 37/270 DATE 12/04
HIGHEST GUST SPEED/DIRECTION 48/280 DATE 12/04
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.50
NUMBER OF DAYS FAIR 8
NUMBER OF DAYS PC 18
NUMBER OF DAYS CLOUDY 5
AVERAGE RH (PERCENT) 49
WEATHER CONDITIONS. NUMBER OF DAYS WITH
FOG OR MIST 12
FOG VSBY LESS 1/4 MI 4
THUNDER 0
ICE PELLETS 0
HAIL 0
FREEZING RAIN DRIZZLE 0
DUST STORM 0
SMOKE OR HAZE 5
BLOWING SNOW 0
TORNADO 0
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
As we begin the new year the winter chill begins to set in. While January can see its share of extremes, the month historically sees stable temperatures and is usually relatively dry.
January ranks as the second coldest month in Denver next to December with average temperatures remaining virtually the same from the start to the end of the month.
In terms of snowfall, the month only ranks as the fourth snowiest and it is not uncommon for it to be quite dry.
What does January 2018 hold for us? Follow the link to find out.
Fire in the sky at sunrise on December 3, 2017. (Ed Dalton)
The month of December can offer everything from bone dry conditions to bone chilling cold and monstrous snowstorms. The weather and wildlife all afford an abundance of photo opportunities as our December photo slideshow shows.
Leaves have fallen from trees now and the landscape can sometimes look quite stark. However it only takes a quick shot of snow to change that picture greatly. Throw in gorgeous sunrises and sunsets, plenty of wildlife big and small, kids playing and much more and the month can be quite colorful and eventful.
Slideshow updated December 30, 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=”72157690956339525″]
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.
We were expecting snow but not quite as much as received. The storm that hit yesterday evening delivered a respectable 3.5 inches to Thornton as snow bands were quite strong and aided by upslope. Temperatures early this morning dipped well into the single digits, our coldest readings since January 7.
The time lapse video below captures four hours of the event as it started and then began to taper off.
Winter officially begins at 9:28am MST on Thursday, December 21, 2017. (NOAA)
Astronomical winter arrives in Thornton Thursday morning and with the solstice also comes the shortest day of the year. Mother Nature as well appears set to bring in winter with a bit of a bang and a change in our recent mild, dry weather pattern.
Winter officially begins at 9:28am MST on Thursday, December 21.
The Winter Solstice occurs when the North Pole is tilted at its furthest from the sun – 23.5 degrees away. This results in the shortest day of the year in the Northern Hemisphere.
Here in Denver, with sunrise at 7:17am and sunset at 4:38pm, our day Thursday will be 9 hours, 21 minutes and 16 seconds long. The following day, Friday, it will be three seconds longer and each day from now through to the Summer Solstice in June will get gradually longer as well.
While we have a short day today, it is nothing like what will be experienced in the Arctic Circle. Areas north of there to the North Pole will have no direct sunlight at all. Conversely, areas south of the Antarctic Circle toward the South Pole will have 24 hours of daylight and have a midnight sun.
Did you know that there is a difference between the astronomical seasons that we are discussing here and meteorological seasons?
Meteorological seasons differ slightly and are geared toward matching the calendar with the annual temperature cycle. This is done primarily for meteorological observing and forecasting and in many ways it is more logical than the astronomical seasons.
For the Northern Hemisphere, the meteorological spring covers the months of March, April and May. Summer brings the hottest months of the year and so meteorological summer is June, July and August. Meteorological fall then is September, October and November followed by the coldest months of December, January and February as meteorological winter.
Our very mild weather today led to another high temperature record, something we have seen a few time over the past month or so.
At 1:58pm, the high temperature in Denver reached 69 degrees as measured at Denver International Airport. This tied the record high for the date set in 1895. The average high for the date is 43 degrees.
Today’s event is the fourth record high that has been set or tied in the last eight weeks (October 25, November 26, November 27). The record high on November 27 of 81 degrees was also the warmest November reading ever recorded in Denver.
Here in Thornton we matched the Mile High City’s temperature with a reading of 69 degrees as well coming at 2:16pm.
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To say November 2017 was simply ‘warm and dry’ in many ways is an understatement. Temperatures were far above normal, our warmest November in the past 10 years in fact. It also was exceedingly dry with little precipitation and snow seen.
The month started off mild then cooled off for a few days from the 6th to the 9th. After that though, the vast majority of readings were above normal, some much higher than average.
Here in Thornton, we saw an average monthly temperature of 44.1 degrees. That is 4.7 degrees above our running 10-year average. Temperatures for us ranged from a high of 77.6 degrees on the 27th down to a low of 20.2 on the 19th.
Denver’s official average came in a bit warmer at 45.3 degrees. That was well above the Mile High City’s November average of 38.3 degrees. A reading of 81 degrees on the 27th and 22 degrees on the 15th were the highest and lowest readings at DIA.
Denver set two daily high temperature records. On the 26th, as measured at Denver International Airport, the temperature topped out at 74 degrees, a record high for the date. This was followed the next day with a record high setting of 81 degrees. The reading on the 27th also set a record for the warmest November ever on record.
In terms of precipitation, what little we saw came during the first half of the month. Thornton saw a mere 0.20 inch in the bucket. The airport saw a bit more with 0.29 inches. Both fall well short of Denver’s long term November precipitation average of 0.61 inches.
Snow was certainly lacking for the month as well. In Thornton we saw 0.8 inches on the 7th, our only measurable snowfall of the entire month. Denver officially only recorded a trace. This is in stark contrast to Denver’s long term November snowfall average of 8.7 inches.
Thornton, Colorado’s November 2017 temperature summary. (ThorntonWeather.com)Thornton, Colorado’s November 2017 precipitation summary. (ThorntonWeather.com)
From the National Weather Service:
CLIMATE REPORT
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
733 AM MST FRI DEC 1 2017
...................................
...THE DENVER CO CLIMATE SUMMARY FOR THE MONTH OF NOVEMBER 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 81 11/27/2017
LOW -18 11/29/1877
HIGHEST 81R 11/27 73 8 80 11/16
LOWEST 22 11/15 -6 28 10 11/30
11/12
AVG. MAXIMUM 61.1 52.1 9.0 59.9
AVG. MINIMUM 29.4 24.5 4.9 30.4
MEAN 45.3 38.3 7.0 45.1
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 0 2.3 -2.3 1
DAYS MIN <= 32 22 23.4 -1.4 15
DAYS MIN <= 0 0 0.6 -0.6 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 3.21 1946
MINIMUM T 1899
1901
1949
TOTALS 0.29 0.61 -0.32 0.52
DAILY AVG. 0.01 0.02 -0.01 0.02
DAYS >= .01 3 4.7 -1.7 2
DAYS >= .10 1 1.6 -0.6 2
DAYS >= .50 0 0.0 0.0 0
DAYS >= 1.00 0 0.0 0.0 0
GREATEST 24 HR. TOTAL 0.23 11/17 TO 11/17
SNOWFALL (INCHES) T 8.7
SNOWFALL (INCHES) RECORDS TOTAL 42.5 1946
DEGREE_DAYS
HEATING TOTAL 586 801 -215 586
SINCE 7/1 1171 1382 -211 896
COOLING TOTAL 0 0 0 0
SINCE 1/1 881 769 112 878
FREEZE DATES
RECORD
EARLIEST 09/08/1962
LATEST 06/08/2007
EARLIEST 10/07
LATEST 05/05
.................................................................
WIND (MPH)
AVERAGE WIND SPEED 9.7
RESULTANT WIND SPEED/DIRECTION 3/214
HIGHEST WIND SPEED/DIRECTION 39/350 DATE 11/18
HIGHEST GUST SPEED/DIRECTION 52/270 DATE 11/01
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.50
NUMBER OF DAYS FAIR 5
NUMBER OF DAYS PC 21
NUMBER OF DAYS CLOUDY 4
AVERAGE RH (PERCENT) 50
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORMS 0 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 0
LIGHT RAIN 1 FREEZING RAIN 0
LT FREEZING RAIN 1 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 3 SLEET 0
FOG 10 FOG W/VIS <= 1/4 MILE 4
HAZE 6
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
Weather, natural disasters & climate news and information.
February in Colorado typically brings to an end an extended period when average temperatures are at their lowest. Winter begins to loosen its grip and temperatures get warmer but precipitation is not a particularly common event during the month.
As we begin the new year the winter chill begins to set in. While January can see its share of extremes, the month historically sees stable temperatures and is usually relatively dry.
