Thornton, Colorado, USA
UpdatedMon, 28-Nov-2022 11:55pm MST 


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Sun and slightly warmer than normal temps for Monday, snow arrives tonight

Monday, November 28th, 2022 5:03am MST

A little bit of this and a little bit of that for the weather forecast for the next 36 hours or so. We start out nice enough with a relatively pleasant day today but tonight a storm system moves in bringing snow that will have a bit of an impact tomorrow.

For today, mostly sunny skies will be above for the majority of the day with a bit of an increase in cloud cover in the mid to late afternoon. Daytime conditions will be dry with some breezy winds in the afternoon. Highs will top out in the low 50s.

Tonight, the storm system arrives. We may see a few light flurries in the evening and into the first part of the night. Snow is expected to increase in coverage and intensity after midnight with lows dipping to around 20 degrees. By dawn tomorrow we could have an inch or so on the ground.

The bulk of the snow looks to come tomorrow morning between about 6:00am and noon. Your morning commute may very well be impacted so plan accordingly. Total accumulations for us look to be on the order of 2 to 4 inches with an outside chance for more.

A Winter Weather Advisory will be going into effect at 2:00am tonight and running through 2:00pm tomorrow. You can read the full advisory here.

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November 27 to December 3: This Week in Denver Weather History

Sunday, November 27th, 2022 4:43pm MST

This Week in Denver Weather History

Cold, snow and wind are the dominant conditions we see in our look back at this week in Denver weather history. All three are common this time of year and extremes with those conditions seem to be unusually common as well.

Among the highlights are numerous high wind events that not only caused damage but also injury to unprepared residents. Significant snowfall also appears many times including a storm in 1983 that shut down the city for the Thanksgiving weekend and left snow on the ground for 63 days.

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From the National Weather Service:


In 1978…heavy snowfall of 6.0 inches was measured at Stapleton International Airport where north winds gusted to 20 mph. Most of the snow…4.8 inches…fell on the 25th. The greatest amount of snow measured on the ground was 5 inches due to settling and melting.


In 1952…the average coldest 4-day period in November in the previous 81 years of record occurred. Maximum temperatures of 19…15…21…and 25 degrees were recorded. Minimum temperatures were below zero each day with readings of 7 below…6 below…5 below…and 6 below.


In 1985…dense fog with visibilities as low as 1/8 mile occurred on five consecutive days at Stapleton International Airport. The fog was at times accompanied by light snow… Light freezing drizzle…or ice crystals. Fog occurred all day on both the 26th and 29th.


In 1876…heavy snowfall totaled 9.0 inches over the city from 5:00 pm on the 26th through 5:00 p.m. on the 27th. Precipitation was 0.30 inch on the 25th and 0.60 inch on the 27th.

In 1919…an incursion of cold arctic air produced snowfall of 4.6 inches over downtown Denver. Temperatures dipped to 5 degrees below zero on the evening of the 26th and recovered to a high of only 1 degree below zero on the 27th…the all-time record low maximum for the month of November and the record for the date. Northwest winds were sustained to 25 mph with gusts to 26 mph on the 26th.

In 1923…snowfall of 2.0 inches was the only snow of the month. North winds were sustained to 22 mph on the 26th.

In 1972…heavy snowfall totaled 7.5 inches at Stapleton International Airport where north winds gusted to only 18 mph on the 27th.

In 1983…a Thanksgiving blizzard dumped 21.5 inches of snowfall in 37 hours with a maximum of 18 inches on the ground at Stapleton International Airport. The storm produced howling winds…which paralyzed Thanksgiving weekend transportation across all of eastern Colorado. On the 27th…Stapleton International Airport closed… Opening 24 hours later. Interstate highways were closed in all directions…but west…from Denver. At Stapleton International Airport…north winds gusted to 36 mph on the 26th and to 29 mph on the 27th. However…most wind speeds across metro Denver were 15 to 30 mph. Temperatures hovered in the teens and lower 20’s. Many stores and businesses closed. Several high school football games were postponed. Across metro Denver…snow depth varied from 15 inches in Commerce City to 28 inches near Chatfield Reservoir. Snow removal in Denver was estimated at 1.5 million dollars. Following the storm… An inch or more of snow remained on the ground for 63 consecutive days through January 27…1984. This is the longest period of continuous snow cover ever recorded in Denver.

In 1990…an early winter storm deposited 2 to 8 inches of wet snow across metro Denver. Snowfall totaled 3.4 inches at Stapleton International Airport where northeast winds gusted to 30 mph on the 26th.

In 1993…strong winds swept off the foothills across metro Denver. Sustained winds of 30 to 50 mph were common across the area. Wind gusts to 67 mph were recorded atop Squaw Mountain near Idaho Springs. West winds gusted to 36 mph at Stapleton International Airport on the 26th. The strong winds produced some blowing snow…reducing the visibility to less than one mile at times.

In 1995…snowfall totaled 3.7 inches at the former Stapleton International Airport site. The foothills west of Denver received 4 to 7 inches of snow. North-northeast winds gusted to 34 mph at Denver International Airport on the 26th.


In 1965…strong winds buffeted Boulder…causing 11 thousand dollars in damage. Wind gusts to 75 mph were recorded downtown. West winds gusted to 38 mph at Stapleton International Airport.

In 1994…winds gusted to 87 mph atop Squaw Mountain…5 miles south of Idaho Springs…and to 84 mph on Fritz Peak near Rollinsville in the foothills southwest of Boulder. Northwest winds gusted to 40 mph at Stapleton International Airport.

In 2017…The maximum temperature for Denver reached 81 degrees which was 34 degrees above the normal high of 47 degrees. This difference between the actual high and the normal high was the second largest ever recorded for Denver. The only larger difference occurred on Dec 5…1939 when Denver was 35 degrees above normal. It also established a new record for the latest 80 degree day for the calendar year in Denver… breaking the previous date by 11 days.


In 1884…a windstorm during the afternoon produced northwest sustained winds to 46 mph. Two wooden slats were blown out of the weather instrument shelter…and nearly all of the slats on the north and west sides were loosened.

In 1898…northwest winds were sustained to 50 mph with gusts as high as 80 mph.

In 1902…northwest winds were sustained to 40 mph with gusts to 48 mph. The strong apparent Bora winds warmed the temperature to a high of only 40 degrees.

In 1904…northwest winds sustained to 44 mph with gusts to 58 mph warmed the temperature to a high of 58 degrees.

In 1927…strong west winds occurred in Boulder…causing widespread minor damage. A wind gust to 65 mph was recorded at Valmont east of Boulder. The west winds possibly produced a cyclonic twist.

In 1928…heavy snowfall totaled 7.0 inches over downtown Denver.

In 1957…a vigorous cold front produced north-northeast wind gusts to 54 mph at Stapleton Airport. Light snow following the front totaled only 0.2 inch.

In 1970…strong Chinook winds reached 77 mph in downtown Boulder.

In 1978…wind gusts 60 to 90 mph were reported in and near the foothills.

In 1984…high winds of 60 to 80 mph occurred along the Front Range eastern foothills.

In Boulder…the high winds blew the roof off a service station. Several trees were felled… Damaging some cars. An elderly woman was injured when she was knocked down by a wind gust and blown 20 feet into some bushes. Northwest winds gusted to 36 mph at Stapleton International Airport.

In 1994…winds gusted to 72 mph in Boulder. No damage was reported. Northwest winds gusted to 35 mph at Stapleton International Airport. » Click here to read the rest of November 27 to December 3: This Week in Denver Weather History

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November 2022 top shots: Monthly photo slideshow

Sunday, November 27th, 2022 4:30am MST
A barn settled in among the fading fall colors. (Bill Hutchinson)

A barn settled in among the fading fall colors. (Bill Hutchinson)

Typically November is a quiet weather month with plenty of nice, fall days but it can also turn wet with healthy doses of snow and moisture.  The wide variety of conditions can create picturesque scenes ranging from blue skies and snow-capped mountains to a wintry wonderland in the metro area.

November is the second snowiest month of the year so winter conditions are not unusual.  Typically though, these bouts of cold are short-lived and normal daytime conditions are pleasant.

Outdoor activities continue to be quite popular during the month.  The cooling temperatures do oftentimes lead to an increase in wildlife activity.

All of the above help lead to a month in which a wide variety of scenes, flora and fauna can be captured.

  • Slideshow updated November 21, 2022
  • 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.

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!

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Thanksgiving weekend weather to start chilly and blustery, then warm up and calm down

Wednesday, November 23rd, 2022 3:38pm MST

Not too bad of an overall forecast for the four-day period although, unfortunately, the holiday itself will have less than ideal conditions.

The cold front is working its way through now and will serve to mix things up tonight and tomorrow. We stand just a chance to see some snow between about 11:00pm tonight and 9:00am tomorrow. However, minimal, if any at all, accumulations are expected.

Tomorrow, we will see the skies clear but it will be chilly with highs only around 40 degrees. Blustery winds will make it feel colder than that.

For the balance of the period, largely calm temperatures with mercury readings around normal can be expected.

Next chance for snow looks to come in the Monday to Wednesday timeframe. Have a happy Thanksgiving and be safe!

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Wednesday temps near normal but breezy with possible overnight snow

Wednesday, November 23rd, 2022 5:07am MST

A bit of a change in the ongoing weather pattern begins today. It will be short-lived but will have a slight impact on Thanksgiving.

We start off today with mostly sunny skies but clouds will be steadily increasing throughout the day as a cold front approaches. With the front this afternoon, winds will become quite blustery for much of the PM. High temperatures will top out right near the average high of 50 degrees.

Tonight, it will remain pretty breezy and lows will dip to the mid-20s. With the passage of the front, we will see just a slight chance for snow after midnight through mid-morning tomorrow. Accumulations, if any at all, will be minimal.

We will have more details on your Thanksgiving weather later today but, offering a preview, your turkey day will be chilly and blustery.

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Tuesday offers up pleasant, fall conditions, temps a bit above normal

Tuesday, November 22nd, 2022 5:07am MST

Another fine looking fall day ahead. Look for lots of sun and mercury readings a bit above normal today.

Sunny skies start us off then the afternoon will bring some high level clouds but nothing too intrusive. Overall, conditions will be dry and calm. Highs today will top out in the low to mid-50s.

Tonight, skies will be partly cloudy with lows dipping to the low 20s.

Lastly, just a bit of a heads up. The system that arrives Wednesday night looks to be a bit stronger than originally thought so we may see a light shot of snow overnight tomorrow night into Thanksgiving morning.

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Lots of sun, calm conditions, temps near normal for Thornton’s Monday

Monday, November 21st, 2022 4:54am MST

A rather tranquil, pleasant November day starts off the workweek today. You will enjoy lots of that Colorado blue above and mercury readings right near average.

Sunny skies will be with us throughout the day with nary a cloud to be seen. Overall, conditions will be calm with light winds. High temperatures will top out close to the average high for the date of 51 degrees.

Tonight, skies will be mostly clear with lows around the 20-degree mark.

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

Sunday, November 20th, 2022 4:55am MST

This Week in Denver Weather History

With the Thanksgiving holiday approaching, travelers cast a wary eye on Denver’s weather and in our look back at this week in Denver weather history we see they have had cause for concern in the past. Snowstorms and wind have caused their share of problems. Also notable, it was 140 years ago that Denver’s first official weather observation occurred.

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From the National Weather Service:


In 1930…a major storm dumped a total of 13.6 inches of snowfall over downtown Denver. Most of the snow…9.4 inches…fell on the 19th when north winds were sustained to 23 mph. This was the only measurable snow of the month. Temperatures hovered in the 20’s and lower 30’s.

In 1956…an intense winter storm dumped 12.8 inches of snowfall on metro Denver. Strong north-northeast winds gusting to 33 mph at Stapleton Airport frequently reduced the visibility to 1/2 mile in snow and blowing snow on the 19th. Most of the snowfall…10.7 inches…occurred on the 19th.


In 1979…a heavy snowstorm buried most of Colorado under at least a foot of snow. Snowfall at Stapleton International Airport totaled 17.7 inches…the greatest snow depth since 1946. Winds to 60 mph produced 5-foot drifts paralyzing the city as temperatures hovered in the 20’s. While small airports closed…Stapleton remained open…but with long delays that snarled thanksgiving holiday traffic. Schools and businesses closed and postal deliveries were delayed. Almost all major highways leading out of Denver were closed to traffic for periods of time on the 20th and 21st. Most of the snow…13.5 inches…fell on the 20th. At Stapleton International Airport…north winds gusted to 35 mph on the 20th and to 38 mph on the 21st.


In 1871…the first official weather observation in Denver… Was taken by Henry Fenton…observer sergeant of the united states army signal service at 5:43 am. The office was located on the 2nd floor of a building at the corner of Larimer and g streets…now 16th street. The daily weather journal hand written entry for the day follows: “Snow fell heavily during past night. At 5:43 am it was snowing light and continued until 8 am. Wind during snow storm gentle and a little west of south…and continued there during the remainder of the day. Sky clear after 8 am. Very cold weather prevailed all day and night. Thermometer at 9:43 pm 14 degrees. Rain gauge and self-registering thermometer not in position owing to severe storm last week. Barometer falling during the morning and rising rapidly at night.”

In 1894…northwest Chinook winds sustained to 40 mph with gusts to 45 mph warmed the temperature to a high of 58 degrees in the city.

In 1909…steady and very strong winds in Boulder caused 3 thousand dollars in damage.

In 1915…post-frontal northeast winds sustained to 40 mph with gusts as high as 42 mph produced only a trace of snow. It was windy most of the day.

In 1923…west winds were sustained to 42 mph with gusts to 44 mph before daybreak. The strong winds persisted in the city for only about 3 hours.

In 1993…a wind gust to 72 mph was recorded at Table Mesa in southwest Boulder.

In 1994…winds gusted to 77 mph atop Squaw Mountain west of Denver. West winds gusted to 40 mph at Stapleton International Airport.


In 1898…snowfall totaled 4.0 inches in downtown Denver. Northeast winds were sustained to 48 mph with gusts as high as 60 mph behind an apparent cold front on the 20th… When temperatures plunged from a high of 66 degrees to a low of 9 degrees. On the 21st the high was only 24 degrees and the low was 2 degrees.

In 1970…a wind gust to 94 mph was recorded at gold hill in the foothills west of Boulder. Strong winds also swept across metro Denver. Wind gusts reached 59 mph in downtown Boulder…while at Stapleton International Airport west- northwest winds gusted to 43 mph on the 21st. Damage was minor.

In 1992…a large Canadian air mass moved into the state at the same time an upper level storm system approached from the west. The combination of cold air at the surface and very moist air aloft produced heavy snow across the entire state. Snowfall totaled 6.3 inches at Stapleton International Airport…where north winds gusted to 23 mph on the 20th. Snow was heavier in the foothills…with 14 inches at Wondervu…13 inches at Aspen Springs…Conifer… Boulder…and Gross Reservoir…8 inches at Rollinsville… And 10 inches at Golden Gate Canyon and Morrison.

In 2007…a storm system brought moderate to heavy snowfall to portions of the urban corridor. Storm totals included: 7 inches…3 miles south-southeast of Fort Collins…with 6 inches in Boulder and at Horsetooth Inlet Bay. Elsewhere… Storm totals ranged from 2 to 5 inches. Snowfall totaled 2.0 inches at the site of the former Stapleton International Airport. » Click here to read the rest of November 20 to November 26: This Week in Denver Weather History

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Thornton’s weekend starts off cold then temperatures will warm

Friday, November 18th, 2022 5:13am MST

Brrr! Just a bit cold as we start our day today with a fresh 2.4 inches of snow on the ground. It will remain quite cold today but the mercury will gradually rise through the weekend.

For today, snow will be coming to an end early this morning with only minimal additional accumulations. Skies will then begin to clear and we will be seeing plenty of Colorado blue. Highs today will only top out in the mid-20s. Tonight, with skies remaining clear, the temperature will be dropping into the single digits.

Saturday starts our warm up, albeit slowly. We will enjoy sunny skies with calm, dry conditions. Highs will be around 40 degrees. Saturday night, it will again be clear and lows will drop to the teens.

Sunday will be the warmest day of the three-day period. Look for highs in the upper 40s under sunny skies. Have a great weekend!

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Wintry blast set to arrive, snow and very cold temperatures on tap

Thursday, November 17th, 2022 5:06am MST

Well, here it comes. Our next storm system is fast approaching and with it we are going to see conditions more like what we expect in January than November.

There might be just a hint of sun at dawn but clouds will soon fill in and cover us for the balance of the day. As they do, we will begin to see some flurries / light snow and those will be with us through mid to late afternoon. We aren’t expecting much accumulation during the daytime hours, maybe an inch.

By about 4:00pm, snow intensity and coverage will increase and last until the pre-dawn hours tomorrow morning. During that period, an additional 2 to 4 inches will be possible. The afternoon commute should not be too bad although if there is melting and then freezing, ice could become a big factor. Tomorrow morning’s drive will be more challenging.

Temperatures are going to be the most notable feature of this system. Thornton looks to stay at the low to mid-20s throughout most of the day today then we start to get colder after 3:00pm. Overnight, lows are going to drop into the single digits.

A Winter Weather Advisory will be in effect from noon today until 9:00am tomorrow.  For all the latest, hit up our Winter Weather Briefing Page.

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