Thornton, Colorado, USA
UpdatedMon, 26-Jun-2017 9:40am MDT 


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March 2017 top shots: Monthly photo slideshow

Wednesday, March 29th, 2017 11:06am MDT
Iridescent clouds make for a stunning scene at the end of the day on March 10, 2017. (Allan Jeffers)

Iridescent clouds make for a stunning scene at the end of the day on March 10, 2017. (Allan Jeffers)

The month of March is the start of meteorological spring and while conditions do begin warming, winter weather is certainly out of the question.  From hot to cold, snow to rain, the conditions can be very conducive to great pictures as we see in our slideshow.

March in Denver typically means frequent and rapid weather changes. The days grow longer and we start enjoying more sunshine and sometimes summer-like weather. However, on occasion arctic air masses can still force their way south into Colorado dropping temperatures quickly and markedly.

With the active wildlife, increased outdoor activities by us humans, and of course the weather, March imagery contains a wide variety of subjects and extremes.

  • Slideshow updated March 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.

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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Wednesday brings end to the rain, warmer temperatures

Wednesday, March 29th, 2017 5:54am MDT

Following a respectable bit of rain overnight, showers are beginning to end and we will start to dry out by later this morning. The dry conditions will be short-lived though as our next storm system arrives on Friday.

This morning we will see some sprinkles continue until about 11:00am or so. By then we should see the cloud cover ease and by mid to late afternoon partly sunny skies return. Temperatures will be warming up to a high in the mid-50s, just a bit below normal.

Tomorrow we return to unseasonably warm temperatures with highs well into the 60s and dry conditions. Friday and Saturday see a return to unsettled condition bringing chances for rain and perhaps, finally, some snow. See our extended forecast for more.

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A damp Tuesday for Thornton as much-needed precipitation arrives

Tuesday, March 28th, 2017 5:34am MDT

We had been hoping for some precipitation and we are certainly going to see it over the next 36 hours or so. Sprinkles start things off and it will be relatively quiet during the daytime but this evening and tonight we should receive a good soaking.

We start out the day with mostly cloudy skies and by mid-afternoon any sun should be pretty much done for the day. Temperatures will be on the cool side today with highs topping out around 50 degrees, about 8 degrees below normal.

As for the rain, sprinkles / light rain will be possible through the morning and first part of the afternoon. If we get enough daytime heating, a bit of thunder could be thrown into the mix this afternoon. By late afternoon and particularly this evening, we should see showers become widespread as deeper moisture arrives.

The rain will continue into the pre-dawn hours before starting to taper off. Overnight lows tonight will be in the mid-30s and winds will be a bit breezy. Right now we are not expecting to see any of this moisture fall as snow in our area, primarily due to a lack of cold air. There may be a few flakes that get mixed in though early tomorrow morning.

Have a great day!

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March 26 to April 1: This week in Denver weather history

Monday, March 27th, 2017 5:21am MDT
This Week In Denver Weather History

March 26 to April 1: This week in Denver weather history

Up until a few days ago, our March had been extraordinarily dry and warm. That isn’t always the case, particularly when it comes to snowfall.  March is one of our snowiest months and our look back at this week in Denver weather history shows a number of notable snowfall events.

From the National Weather Service:


In 1959…the second major spring storm in less than a week dumped 10 to 20 inches of wet snow across northeastern Colorado. Snowfall totaled 14.3 inches at Stapleton Airport where north winds gusted to 36 mph…causing near- blizzard conditions with visibilities frequently reduced to 1/2 mile in snow and blowing snow. Many travelers were marooned when trains…planes…and buses were unable to make their schedules. Utility lines were again damaged as a result of the storm.


In 1899…a major storm dumped 13.1 inches of heavy snow over downtown Denver. Rain changed to snow around mid- morning on the 25th. Snowfall became heavy and continued until late evening on the 26th. North to northeast winds gusted to 30 mph on both days. The cold air mass plunged temperatures from a high of 55 degrees on the 25th to a low of 8 degrees on the 26th.

In 1995…a potent early spring storm produced heavy snow in the mountains…but skipped over metro Denver…before producing blizzard conditions and 6-foot drifts over eastern Colorado…causing the closure of I-70 and other highways. Only 0.7 inch of snow fell at the site of the former Stapleton International Airport. North winds gusted to 40 mph at Denver International Airport on the 25th.

In 2001…a persistent band of moderate to heavy snow showers with a few embedded thunderstorms formed in the foothills around Estes Park and spread to the southeast across Boulder and Denver and on the plains to the east of Denver. Thunder and snow was reported at Jefferson County…Centennial…and Denver International Airport during the evening of the 25th. Snowfall totals included: 7 inches at Boulder and Louisville; 6 inches at Broomfield…Niwot…and Westminster; 5 inches at Eldorado Springs…Nederland…and near Strasburg. Only 2.1 inches of snow fell at the site of the former Stapleton International Airport.


In 1904…heavy snowfall totaled 7.0 inches in downtown Denver.


In 1899…a major winter storm dumped 11.3 inches of snow over downtown Denver.

In 1910…west winds were sustained to 42 mph. A snow shower produced a trace of snow.

In 1935…a severe dust storm swept across the city. The dense dust blew in on a gale from the east-northeast. The dust “bank” was first visible on the northeastern horizon at about 2:00 pm. It advanced toward the city as a rolling…swirling…yellowish-to smoke-black cloud. At 2:06 pm…the cloud of dust enveloped the station. Before the storm the visibility was unlimited. At 2:08 pm…the visibility was reduced to 1/8th mile. By 2:25 pm…the visibility was increasing and was above 1000 feet at 3:10 pm. Thereafter…the sun appeared as a dim “ball of fire” at times. The dust was partially gone at 8:30 pm. During the storm…northeast winds were sustained to 32 mph with gusts as high as 35 mph.

In 1971…the highest recorded temperature in March…84 degrees…occurred. This was the highest temperature recorded so early in the season. Previously…84 degrees had not been reached until April 21st. The temperature also exceeded the previous daily record of 75 degrees set in 1960. Strong northwest Chinook winds gusting to 37 mph at Stapleton International Airport were partially responsible for causing the extremely warm weather so early in the season.

In 1985…strong winds occurred along the foothills. A wind gust to 76 mph was recorded in Boulder. A dust storm produced by the strong winds caused a 35-car pileup on I-25 north of Denver. In Denver…the high winds blew out windows in a few downtown buildings. West winds gusted to 52 mph at Stapleton International Airport.

In 1993…strong winds from high based thunderstorms blew a roof off an Englewood business onto several parked cars. The winds also caused half of a furniture warehouse roof to collapse in north Denver…ripped a mechanical shed off the roof of a building in downtown Denver…and downed power lines in Commerce City. Wind gusts ranging from 55 to 68 mph were recorded. At Stapleton International Airport… Where no thunder was heard…a microburst wind gust to 55 mph briefly reduced the visibility to zero in blowing dust.

In 1994…heavy snow fell in the foothills west of Denver and over the palmer divide to the south of metro Denver. Snowfall totaled 11 inches at both the Eldora Ski Area and at Idaho Springs. Only 1.3 inches of snowfall were measured at Stapleton International Airport where north winds gusted to 28 mph.

In 2006…post-frontal strong winds quickly dissipated the dense morning fog across metro Denver. West to northwest winds were strong and gusty from mid-morning until sunset. West winds were sustained to 37 mph with gusts to 52 mph at Denver International Airport.


In 1886…heavy snowfall totaled 7.1 inches in downtown Denver.

In 1911…post-frontal north winds were sustained to 48 mph on the 26th and to 47 mph on the 27th.

In 1931…a cold front brought snow and very cold weather to the city. Snowfall totaled 7.3 inches over downtown Denver with most of the snow…6.4 inches…occurring on the 26th… When northwest winds were sustained to 38 mph with gusts to 44 mph. High temperature of 31 degrees on the 26th equaled the low temperature of the previous day as the temperature plunged to a low of 1 degree below zero. High temperature of only 15 degrees on the 27th was a record low maximum for the date. Low temperature of 2 degrees below zero on the 27th was not a record.

In 1975…a major pre-Easter blizzard…the worst since the vicious storm of 1949…battered northeastern Colorado and left livestock losses in millions of dollars…but metro Denver escaped the main brunt of the storm and received only 5.0 inches of snowfall. North winds gusted to 38 mph at Stapleton International Airport where temperatures plunged from a high of 50 degrees to 18 degrees by midnight on the 26th.

In 1991…heavy snow fell over portions of the eastern foothills with 9 inches recorded at Lake Eldora west of Boulder. The snow spread across metro Denver…but snowfall totaled only 1.7 inches at Stapleton International Airport where north to northeast winds gusting to 31 mph on both days produced some blowing snow.

» Click here to read the rest of March 26 to April 1: This week in Denver weather history

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Thornton’s workweek starts mild, unsettled weather arrives this evening

Monday, March 27th, 2017 5:17am MDT

Following a relatively pleasant day Monday, we then enter an unsettled period that will last into the weekend. The good news is that we see decent chances for much-needed precipitation at different points of the week.

For today, we start out under partly sunny skies that will be with us through the morning. Then, this afternoon, cloud cover will slowly increase. Temperatures will be heading toward a high in the low 60s, a bit above the average for the date of 57 degrees.

Daytime hours will be dry then this evening we begin to see a chance for light rain showers and those same chances will stick around until Tuesday evening when precipitation chances increase. Overnight lows tonight will be in the upper 30s.

Taking a quick look at the rest of the week, cooler temperatures a bit below normal will be on tap Tuesday and Wednesday. Precipitation chances increase on both days with the best chances coming Tuesday night. Thursday we get a bit of a break with a day similar to today then our next system arrives for Friday and Saturday bringing cooler temps and more chances for precipitation. For more details, check out the extended forecast here.

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Wet & blustery Friday to give way to drier Saturday, showers again possible Sunday

Friday, March 24th, 2017 5:12am MDT

We had voiced our doubts about us receiving much snow overnight and indeed, we received rain but it is very welcome. That will be coming to an end this morning leading to drier conditions until Saturday evening and Sunday when showers have a chance to return.

For today, a Winter Weather Advisory remains in effect until noon although it is not really necessary in our area and likely will be dropped soon. As of this writing we have received nearly a half inch of much-needed precipitation in the form of rain. There may be a snowflake or two mixed in there but it won’t amount to much. Look for showers to begin tapering off after about 9:00am, ending entirely by noon. High temperatures are going to be in the mid-50s, right near normal. The wind that started yesterday evening though is going to continue into this evening before ending. Overnight tonight lows will dip close to freezing under partly cloudy skies.

Saturday looks to be the nicest day of the three day period.  Mostly sunny skies will be above and winds light. Look for highs tomorrow in the low to mid-60s. A weak system moves in tomorrow evening and with it we see a slight chance of showers after 6:00pm through the night. Lows Saturday night into Sunday morning will be in the upper 30s.

Shower chances increase in the early morning Sunday and last throughout the day. There isn’t a lot of moisture though so precipitation totals should be light. Highs will be the mid-50s.

Have a great weekend and keep an eye on temperatures, wind speeds and precipitation totals here.

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Denver sets record high temperature for March 23

Thursday, March 23rd, 2017 5:12pm MDT

Record High TemperaturesWith wintry weather just hours away, Denver’s recent warm spell let out one last gasp with a record high temperature.

At 3:03pm the high temperature at Denver International Airport, where the Mile High City’s official measurements are taken, reached 77 degrees.  This broke the record high for the date set in 2012 and previous years.

Here in Thornton we were just a touch cooler topping out at 76.1 degrees at 1:51pm.

While the month of March has continued the unseasonably warm weather that began in February, this is the first record high set this month.  The weather picture changes considerably, at least in the short term, with a blast of cold and snow set to arrive tonight.

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Thornton to get one more mild day before moisture, cooler temps arrive

Thursday, March 23rd, 2017 5:14am MDT

Today is the last of our most recent string of unseasonably warm days. An approaching storm system is going to bring some much needed precipitation to the area tonight and tomorrow.

For today look for mostly sunny skies to be above during the daytime hours with clouds increasing by late afternoon into the evening. Temperatures will once again climb to well above normal with a high expected in the low 70s. Average for today’s date is 57 degrees.

Winds will be calm initially then begin picking up speed later this morning and remain breezy into the evening. The wind, low humidity and dry fuels have prompted the issuance of a Red Flag Warning that will be in effect from noon to 6:00pm. Fire danger is going to be very high and any blazes that get started could see very fast growth.

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As for the coming storm system, we see a chance for rain showers after about 6:00pm this evening with them becoming likely after midnight. As temperatures drop overnight to near freezing, we should see a bit of snow mix in and continue through Friday morning. It is expected to be very windy overnight and into tomorrow morning with gusts potentially hitting 50mph.

As we have been saying in recent days, we don’t believe we will see a great deal of snow out of this system with most of the precipitation coming in the form of rain. Perhaps 1 to 3 inches will be possible from pre-dawn Friday through the morning hours. There is going to be a fine line between rain and snow and that could certainly change.

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Unseasonably warm temps, plenty of sun for Wednesday

Wednesday, March 22nd, 2017 5:53am MDT

An oft-repeated weather forecast for Thornton today as we once again enjoy a mild, dry day. Change is on the way though with precipitation looking likely tomorrow night into Friday. Will it be snow though?

For today we start with mostly clear skies and for the most part similar conditions will be above throughout the day. The late afternoon and evening will bring a bit of an increase in the cloud coverage.

Temperatures today start out a bit chilly but then will warm up nicely to the low to mid-70s. Winds will generally be calm.

Looking ahead, Thursday will be another warm day and then a system will begin to make itself felt overnight. Precipitation becomes likely late tomorrow night / early Friday morning continuing for a good part of the day Friday.

The big question mark is what form that precipitation takes. Temperatures are going to be crucial in determining whether we get rain or snow. Right now it appears the snow level will be just above us leaving us with rain. That could change though as we are still almost 48 hours away from the event.

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Thornton’s Tuesday brings a bit cooler temps, slight chance for showers

Tuesday, March 21st, 2017 5:50am MDT

With a weak front having backdoored into the area late yesterday, we mix things up just a bit today. Temperatures remain well above normal but do cool over recent highs and we even see a slight chance for showers and perhaps some thunder.

The day starts out with partly clear skies and similar conditions will be above due to increased moisture aloft. Temperatures will warm steadily toward a mid to late afternoon high in the upper 60s.

By late afternoon lower levels begin to see some moisture which brings just a slight chance for a rain shower into the evening. Some instability may be present leading to some thunder.

Looking ahead, we will be dry and warmer tomorrow then Thursday looks somewhat similar to today. There has been some talk about a stronger storm system arriving Friday along with some hype from other media outlets. Moisture does look to increase and temperatures cool bringing a better chance for precipitation. At this time though, we are inclined to think this would be more in the form of rain for the Front Range with the snow remaining at higher altitudes. We will get a better feel for it as the system gets closer.

In the meantime, check out http://www.thorntonweather.com for all the latest.

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