We knew today would be the warmest day of the weekend and not only did that hold true, it was a record setting performance.
As measured at DIA, Denver’s high temperature today reached 77 degrees (as of this writing). That bested the record high temperature for November 9th of 76 degrees set in 1927.
Here in Thornton, we were a bit warmer with a high of 79 degrees.
Hopefully you enjoyed it as cooler weather lies ahead. See our extended forecast for details.
The weather during the month of November in Denver metro area can offer just about anything. While it is normally a quiet month, it can be prone to extremes.
November has historically been one of Denver’s snowiest months and major snowstorms are not entirely uncommon. However conditions can also be quite dry.
Temperatures during the month continue to cool as we get closer to winter and by the end of the month the low temperatures routinely dip to 20 degrees or below. At times it can in fact bring conditions more like what we see in January.
Get all the details on November’s weather and what we can expect in our complete preview here.
There is little doubt that when folks’ memories go back October 2019’s weather, they will remember the snow and even more so, the cold. Numerous cold temperature records were broken and the month ended up as one of the coldest Octobers on record.
Things started off cool for the first few days and a bit of precipitation. We then warmed up and dried out, seeing our warmest temperatures of the month on the 7th, 8th and 9th. From there, it was mostly downhill.
The evening of the 9th saw a powerful storm system and cold front move across northeastern Colorado. Temperatures plummeted and we saw our first snowfall of the season. Denver officially saw a 70 degree temperature change from the 9th to the 10th, tying the period for the second largest two-day temperature swing in Denver history.
High pressure returned on the 12th and we warmed up and dried out again. Cool but non-dramatic conditions arrived for the 18th through the 23rd. We then saw our second snowfall on the 24th of the month.
A brief rebound saw us warm up and enjoy a day of warmer than normal temperatures on the 26th. Once again, Mother Nature dropped the hammer with cold and snow returning on the 27th. The final five days of the month saw us receive two shots of snow and temperatures more akin to what we would expect to see in January.
Overall, Thornton’s average temperature for the month was 42.8 degrees. This was far below the long term Denver average for October of 50.9 degrees and was Thornton’s second coldest October since ThorntonWeather.com came online in the fall of 2006.
Out at Denver International Airport where the Mile High City’s official measurements are taken, it was slightly warmer with an average of 43.7 degrees. That made the month the fourth coldest October in Denver weather history.
Denver saw six cold weather daily temperature records fall. Among them were a record low of 13 degrees on the 10th, a record low on the 11th, record low maximums on the 28th and the 29th, and then two more record low temperatures on the 30th and 31st.
In terms of precipitation, Denver averages 1.02 inches of liquid during the month of October. Thornton bested that handily with 1.54 inches in our rain bucket. At DIA, it was drier with only 0.91 inches officially.
Snow was abundant in Thornton and Denver. Thornton received 17.6 inches of the white stuff while Denver came in at 12.5 inches. The Denver measurement made the month the 12th snowiest in Denver weather history.
Click here to view Thornton’s October 2019 climate report.
CLIMATE REPORT
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
230 PM MDT FRI NOV 1 2019
...................................
...THE DENVER CO CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2019...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1872 TO 2019
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
................................................................
TEMPERATURE (F)
RECORD
HIGH 90 10/01/1892
LOW -2 10/29/1917
HIGHEST 83 10/09 83 0 86 10/03
LOWEST 3 10/30 22 -19 18 10/15
AVG. MAXIMUM 58.5 65.3 -6.8 61.5
AVG. MINIMUM 28.9 36.6 -7.7 36.8
MEAN 43.7 50.9 -7.2 49.2
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 5 0.4 4.6 1
DAYS MIN <= 32 18 8.5 9.5 7
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 4.17 1969
MINIMUM T 1934
TOTALS 0.91 1.02 -0.11 0.99
DAILY AVG. 0.03 0.03 0.00 0.03
DAYS >= .01 9 5.3 3.7 9
DAYS >= .10 4 2.4 1.6 3
DAYS >= .50 0 0.5 -0.5 0
DAYS >= 1.00 0 0.1 -0.1 0
GREATEST
24 HR. TOTAL 0.22 10/29 TO 10/29
SNOWFALL (INCHES)
RECORDS
TOTAL 12.5 4.0
RECORD OCTOBER 31.2 1969
DEGREE_DAYS
HEATING TOTAL 653 440 213 487
SINCE 7/1 675 581 94 565
COOLING TOTAL 1 5 -4 4
SINCE 1/1 916 769 147 1026
FREEZE DATES
RECORD
EARLIEST 09/08/1962
LATEST 06/08/2007
EARLIEST 10/09 10/07
LATEST 05/05
.................................................................
WIND (MPH)
AVERAGE WIND SPEED 10.0
RESULTANT WIND SPEED/DIRECTION 1/209
HIGHEST WIND SPEED/DIRECTION 46/040 DATE 10/09
HIGHEST GUST SPEED/DIRECTION 57/030 DATE 10/09
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.40
NUMBER OF DAYS FAIR 13
NUMBER OF DAYS PC 13
NUMBER OF DAYS CLOUDY 5
AVERAGE RH (PERCENT) 51
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
The storm might be over but its effects continue to be felt in the form of very cold temperatures. This morning Denver recorded its coldest temperature ever for October 31.
In the pre-dawn hours the temperature at Denver International Airport dropped to 7 degrees. This handily bested the record low temperature for the date of 10 degrees set in 1991.
Here in Thornton we were just a bit colder with a low of 5 degrees.
This is the third cold temperature record set in recent days. It follows a record low maximum on the 29th and a record low yesterday.
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.
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=”72157711281326282″] |
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!
The biannual ritual of changing our clocks to adjust for Daylight Saving Time occurs this weekend, providing yet another signal of the changing of seasons. The United States will ‘fall back’ one hour at 2:00am Sunday morning as we return to Standard Time.
The ritual of changing our clocks twice a year can be met with some resistance as some people struggle to adjust their body’s internal clock. Others actually like the return to standard time as they get to enjoy an extra hour of sleep.
The time change definitely has big effects on the dawning of daylight and how early it gets dark in the evening.
Sunrise on Saturday occurs at 7:29am but on Sunday it will be at 6:30am. Similarly, sunset will occur at 5:56pm on Saturday but on Sunday the sun will disappear over the horizon at 4:55pm.
For many this means that when they get home from work it will now be dark and outdoor activities will be significantly curtailed as a result.
Arizona and Hawaii are the only states that do not observe Daylight Saving Time and remain on Standard Time year round. The U.S. territories of Puerto Rico, American Samoa, Guam, Northern Mariana Islands, and the United States Virgin Islands also do not observe the event.
It won’t be all that long though before Daylight Saving Time returns. On March 8, 2020 we will ‘spring forward.’
Daylight Saving Time Schedule
The mandated beginning and end of Daylight Saving Time has changed in the United States over the years.
The most recent schedule was set by the Energy Policy Act of 2005 and took effect in 2007. We now ‘spring forward’ to begin Daylight Saving Time on the second Sunday in March and ‘fall back’ with the return to Standard Time on the first Sunday in November.
Daylight Savings Time Dates
| Year | DST Begins 2 a.m. (Second Sunday in March) |
DST Ends 2 a.m. (First Sunday in November) |
|---|---|---|
| 2019 | 10 March 2019 | 3 November 2019 |
| 2020 | 8 March 2020 | 1 November 2020 |
| 2021 | 14 March 2021 | 7 November 2021 |
| 2022 | 13 March 2022 | 6 November 2022 |
| 2023 | 12 March 2023 | 5 November 2023 |
| 2024 | 10 March 2024 | 3 November 2024 |
| 2025 | 9 March 2025 | 2 November 2025 |
With the snow yesterday also came unusually cold temperatures. Yesterday’s high temperature was the coldest recorded for the date and now Denver has set a record low temperature.
Denver’s official temperature this morning dropped to 3 degrees as measured at Denver International Airport. That broke the record low temperature for October 30 of 7 degrees set in 1991.
Thornton saw similarly bone-chilling cold with a low of 4 degrees this morning.
Today, temperatures are going to run about 40 degrees below normal. Further, there is a good chance we set another record low temperature tomorrow morning. The record low for October 31 is 10 degrees and current indications are we could dip to near 0 degrees.
Not only did we receive a healthy shot of snow with this latest storm, we also saw some very cold temperatures. In fact, the first of what could be a few cold temperature records has been set.
As measured at Denver International Airport, the Mile High City’s official high temperature today was only 18 degrees. Not only was that more than 40 degrees below average, it also sets a record for the coldest high temperature for October 29. The old record was 25 degrees set in 1993.
Here in Thornton, we were just a bit “warmer” with a high of 20 degrees.
The record-breaking cold is not done either. There is a good chance Denver sets a record low tomorrow morning and on Thursday morning.
Last night temperatures dropped into record-setting territory. This morning that trend continued and set a record low temperature for October 11 as well.
As measured at Denver International Airport, the Mile High City’s official low temperature this morning was 9 degrees. That absolutely shattered the previous record low temperature for the date of 22 degrees set in 1946.
Thornton saw extremely cold temperatures as well, although not quite as cold as DIA. Our low came in at 15 degrees.
On a related note, yesterday’s snowfall was the first of the season and brought Thornton 3.3 inches of the white stuff. Officially, as measured at DIA, Denver recorded 1.0 inches.
Friday and the weekend will see us break out of the cold with a warming trend that will see mercury levels back near normal on Sunday. Get the forecast here.
While our first snowfall of the season had ended, the cold was just beginning.
Just before midnight on Thursday, the temperature at Denver International Airport fell to 13 degrees.
This easily beat the record low temperature for October 10 of 17 degrees set in 2009.
Thornton managed to stay warmer with our low of 20 degrees coming in the morning.
The temperature will continue to drop tonight and into early Friday morning. It starts with record setting cold and now we will wait and see just how cold it gets.
Looking ahead, the weekend will offer up gradually warming temperatures with Sunday returning us to near normal readings.