Wednesday brings cool, damp conditions ahead of snowstorm tonight and Thursday

Getting closer! The daytime hours today will be relatively non-dramatic with temps near normal and some rain showers. Tonight, the storm system we have been anticipating arrives and with it, potentially significant snowfall.

Starting off, we may see a little bit of sun but then cloudy skies will take over. Light rain showers will be possible much of the day. Highs will top out in the low 50s.

Late afternoon and evening will see showers increase in coverage and intensity and temperatures will drop. After midnight, we should then begin seeing snow. By sunrise tomorrow, 2 to 4 inches will be possible.

Thursday during the day is when things are expected to ramp up and the bulk of the snow hit. An additional 3 to 5 inches will be possible during the daytime hours tomorrow, then another inch or so tomorrow night. A Winter Storm Warning has been issued warning of the potential for 8 to 16 inches.

Thornton will likely be at the lighter end of totals in the metro area with areas west and southwest getting hit much harder. We do see 6 to 10 being quite possible for us.

As we have previously mentioned, this is very much a non-traditional storm setup and as such, many variables are involved, some of which could affect totals in the end. Most notable is temperatures and when the changeover from rain to snow occurs. A later changeover could have big impacts on the amount of snow received.

Certainly, finish your preparations today and be ready should things hit as expected.

Thornton to enjoy one more mild, relatively calm day Tuesday, winter storm arrives Wednesday

Another good looking day ahead for us with above normal temps. Things will soon be changing though as a significant winter storm has its sights set on us for the coming days.

Today we start off with clear skies but cloud cover will increase by mid-morning. The balance of the day will see partly clear skies above. Overall, conditions will be calm beyond some breezy west winds in the afternoon. High temperatures will be topping out in the low to mid-60s.

Tonight, skies will become cloudy and lows will dip to the mid-30s. Some light rain showers will be possible after midnight.

Now, for what everyone will be watching today… The much-talked about storm system continues on track and confidence is increasing for a significant snowfall event beginning Wednesday night and lasting through Thursday night.

The setup for this storm is a bit non-traditional making it tough to pin down and certainly much could change in the next 24 hours or so. However, it is best to be aware and be prepared.

The National Weather Service has issued a Winter Storm Watch cautioning that 6 to 12 inches will be possible in the Denver metro area, including Thornton. The biggest impacts will be areas closer to the foothills and Palmer Divide.

Assuming things continue as it currently looks, we do see where Thornton could fall in the 5 to 8 inch range.

Thornton’s weekend starts wintry, ends springlike

While we start off the three-day period with less than ideal conditions, it will be short-lived and not particularly dramatic. We then rebound nicely with very nice days Saturday and Sunday.

For today, patchy fog, light snow and some freezing drizzle will be seen this morning. Light accumulations of a half inch or less will be possible. Roads may be icy in spots this morning so be aware. Any precipitation should be pretty much done by 1:00pm. Highs will only be in the mid-30s. Tonight, skies will gradually clear and we will be dry. Lows will dip to the low to mid-20s.

Saturday offers up a quick recovery. We will enjoy sunny skies and calm, dry conditions. High temperatures will be in the mid-50s. Saturday night, lows dip to the mid-20s under mostly clear skies.

Sunday will be the warmest day of the period with highs in the low to mid-60s. Sunny skies will be above and we will again be dry and calm.

Thursday in Thornton chills out, offers up some rain and snow

A passing system will mix up the weather today, returning us to winterish conditions. However, it won’t be particularly dramatic for us with the worst being to the west and northeast.

Mostly cloudy skies start us off and will soon give way to cloudy skies. Temperatures today are going to remain flat with a daytime high of only around 40 degrees. Winds will be picking up and out the northeast this afternoon and evening. Daytime hours bring a chance for some showers, rain and a rain / snow mix being the most likely form. No accumulation is expected during this timeframe.

Late afternoon, chances for showers increase and continue through the overnight hours. Any precipitation will change to all snow. As mentioned above, the best of the storm should stay west of I-25. For us here to the east, a trace to 2 inches will be possible overnight. Low temperatures will be in the mid-20s.

Time to ‘spring forward’ as Daylight Saving Time begins March 10

Daylight Saving Time
The United States returns to Daylight Saving Time at 2:00am Sunday as Standard Time comes to an end.

The biannual ritual of changing our clocks to adjust for Daylight Saving Time occurs this Saturday night providing yet another signal of the changing of seasons.  The United States will ‘spring forward’ one hour at 2:00am Sunday morning as we begin Daylight Saving 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.  The start of Daylight Saving Time can be particularly problematic given the one hour less sleep people receive on the night of the change.

However, longer days as we head into the milder months are a very real benefit and for many worth the inconvenience of a lost hour of sleep.  The time change definitely has big effects on how much daylight we enjoy during our normal waking hours.

On Saturday, prior to the change, sunset will occur at 6:01pm but on Sunday the sun won’t disappear over the horizon until 7:02pm.  This affords folks more time in the evening to get started on those spring-time chores and allows us to get outside and enjoy the warming weather.

Similarly, sunrise on Saturday is at 6:19am but shifts to 7:18am on Sunday.

The March Equinox is also on the horizon.  Spring officially begins at 9:06pm on Tuesday, March 19.

This year Daylight Savings Time will come to an end on November 3.

Some of the recent history of Daylight Savings Time (from Wikipedia):

Daylight saving time in the United States was first observed in 1918. Most areas of the United States currently observe daylight saving time, with the exceptions being the states of Arizona and Hawaii along with the territories of Puerto Rico, American Samoa, Guam, and the Northern Mariana Islands.

From 1987 to 2006, daylight saving time in the United States began on the first Sunday of April and ended on the last Sunday of October. The time was adjusted at 2:00 AM (0200) local time (as it still is done now).

Since 2007, daylight saving time starts on the second Sunday of March and ends on the first Sunday of November, with all time changes taking place at 2:00 AM (0200) local time.

Daylight Savings Time Schedule

Year DST Begins 2 a.m.
(Second Sunday in March)
DST Ends 2 a.m.
(First Sunday in November)
2024 10 March 2024 3 November 2024
2025 9 March 2025 2 November 2025
2026 8 March 2026 1 November 2026
2027 14 March 2027 7 November 2027
2028 12 March 2028 5 November 2028
2029 11 March 2029 4 November 2029

March 3 to March 9: This Week in Denver Weather History

This Week in Denver Weather History

The month of March sometimes brings with it some of our most interesting weather with a wide variety of conditions possible. Our look back at this week in Denver weather history showcases this fact as we see damaging, high wind events, monster snow storms, and even thunderstorms.

From the National Weather Service:


In 1901…strong northwest winds raked the city for 2 days. On the 2nd…winds were sustained to 55 mph with gusts to 62 mph. The Chinook winds warmed the temperature to a high of 72 degrees…a record maximum for the date. On the 3rd…winds were sustained to 61 mph with gusts as high as 65 mph. The high temperature was 59 degrees.

In 1964…heavy snowfall of 6.3 inches was measured at Stapleton International Airport. East winds gusted to only 20 mph behind a cold front.

In 1978…5.0 inches of snowfall were measured at Stapleton International Airport where northeast winds gusted to 24 mph on the 2nd. The passage of a cold Canadian front kept temperatures only in the teens and 20’s on the 2nd after a high temperature of 33 degrees shortly after midnight. The temperature…after a morning low of 3 degrees below zero…climbed to only 14 degrees on the 3rd…setting a record low maximum for the date.


In 1963…heavy wet snow was accompanied by strong gusty winds across metro Denver. Snowfall totaled 11.6 inches at Stapleton Airport where north winds gusting to 44 mph caused much blowing and drifting snow. Hazardous driving conditions resulted in many traffic accidents.

In 1976…snowfall totaled 8.0 inches at Stapleton International Airport where…on the 4th…northeast winds gusted to 31 mph reducing the visibility to as low as 1/4 mile. Maximum snow depth on the ground was 7 inches. Nine inches of snow were measured in Boulder.


In 1875…six inches of snow fell in Georgetown.

In 1895…northwest bora winds were sustained to 45 mph with gusts to 58 mph in the city.

In 1966…cold northwest wind gusts of 50 to 90 mph occurred across metro Denver. Both cars and trucks were blown off an icy highway just east of Denver where some highways were closed by either blowing dust or blowing snow. A northwest wind gust to 43 mph was recorded at Stapleton International Airport. The strong winds caused limited minor damage.

In 1972…winds gusted to 55 mph in Boulder causing no reported damage. West winds gusted to 49 mph at Stapleton International Airport.

In 1985…snow struck metro Denver. Heaviest hit was Boulder where 6 to 8 inches were measured. Icy roads caused the closure of I-25 north and south of Denver due to traffic accidents. The snow also caused long delays at Stapleton International Airport where snowfall totaled only 2.6 inches.

In 1997…west winds gusted to 52 mph at Denver International Airport.


In 1932…a dust storm occurred on the 3rd during the late afternoon. North winds gusting as high as 38 mph behind a cold front kicked up much blowing dust. Light snow developed during the evening and continued through the early morning of the 4th. Snowfall totaled 2.7 inches.

In 1934…strong winds raked Boulder. A wind gust to 62 mph was recorded at Valmont just east of Boulder. The strong winds caused hundreds of dollars of damage in Boulder.

In 1981…the most vigorous snow storm of the season struck the state…closing many schools and most highways connecting Denver…Colorado Springs…and Limon. North winds gusting to 43 mph whipped nearly 10 inches of snow in Denver into 3-foot drifts and snarled traffic on the morning of the 4th. Snowfall totaled 9.8 inches at Stapleton International Airport.

In 1989…a storm dumped 2 to 6 inches of snow across metro Denver. The snow caused 2-hour air traffic delays at Stapleton International Airport where 3.0 inches of snow fell and north winds gusted to 23 mph on the 3rd. There were many traffic accidents across metro Denver. I-70 was closed east of Denver for a time on the 3rd.

In 1991…high winds raked the eastern foothills. Wind gusts of 60 to 90 mph were common with 119 mph recorded at Wondervu southwest of Boulder…106 mph on Shanahan Ridge and 92 mph at Table Mesa…both in southwest Boulder. Several trees were uprooted and traffic signs and lights blown over. Flying debris caused damage to homes… Buildings…and cars.

In Boulder…a stop sign was blown onto a car. There were no reports of injuries. Southwest winds gusting as high as 48 mph briefly reduced the prevailing visibility to as low as 1/16th mile in blowing dust at Stapleton International Airport on the 4th.


In 1961…snowfall totaled 8.3 inches at Stapleton Airport over the 3-day period with most of the snow…4.4 inches… Falling on the 3rd. Winds were generally light gusting to only 23 mph.


In 1887…snowfall was only 0.1 inch. This was the earliest last measurable snow of the season.

In 1971…a wind gust to 102 mph was recorded at the National Center for Atmospheric Research in Boulder. A wind gust to 83 mph was measured at the National Bureau of Standards. In downtown Boulder…sustained winds reached 35 mph with gusts as high as 57 mph. No significant damage was reported. West winds gusted to only 28 mph at Stapleton International Airport.

In 1982…brief heavy snow accompanied by a few thunderstorms struck metro Denver. Lightning struck a house in Arvada setting it afire. The thunderstorm produced 5 inches of snowfall in a 2-hour period in Wheat Ridge. The snow made roads very icy and slick causing a 59-car pile-up on I-70 in north Denver. Snowfall with thunder totaled only 1.3 inches at Stapleton International Airport.

In 1997…a fast moving pacific storm produced heavy snow in the foothills. Snowfall at Conifer measured 9 inches. Only light snow fell elsewhere over metro Denver. Snowfall totaled only 1.2 inches at the site of the former Stapleton International Airport. North northeast winds gusted to 28 mph at Denver International Airport.


In 1971…heavy post-frontal snowfall totaled 7.7 inches at Stapleton International Airport where north winds gusted to 28 mph.

In 1992…snow spread from the mountains into the eastern foothills where 19 inches fell in Coal Creek Canyon. Rain fell over lower elevations of metro Denver with 1.12 inches of precipitation recorded at Stapleton International Airport and only one half inch of snow. North winds gusted to 32 mph.

In 2004…snowfall totaled 1.8 inches at the Denver Stapleton site. This was the only measurable snowfall of the month. Northeast winds gusted to 29 mph at Denver International Airport.

Continue reading March 3 to March 9: This Week in Denver Weather History

Wednesday sees warmer temps, chance for a little bit of rain

Today will offer Thornton its warmest temperatures of the week. We do also see just a bit of a chance for some precipitation this afternoon and overnight.

Mostly sunny skies start us off then cloud cover will increase by the late morning / early afternoon. Winds will become a bit breezy this afternoon. High temperatures will top out near the 60 degree mark. Mid to late afternoon gives us a chance to see some rain although we are not expecting much, if any.

This evening, gives the best chances for precipitation, then only the slightest chances overnight, perhaps even a few flakes of snow early tomorrow morning. Skies will be mostly cloudy overnight with lows around freezing.

Tuesday brings temps near average, some cloud cover and breezy winds

A weak passing system will increase moisture aloft leading to more cloud cover today. We will, however, still see temps near normal.

Mostly sunny skies start us off but soon cloud cover will increase. Most of the day will feature partly clear skies. Winds will be slightly breezy from mid-morning through the evening. High temperatures will top out near the 50 degree mark.

Tonight, skies remain partly clear. Overnight lows will dip to around 30 degrees.

Seasonal temperatures, dry conditions start Thornton’s workweek

A relatively nice day for you as you head back to work. Temps will be right near average for the date and there will be a good bit of sun above.

We start off with some cloud cover and that will ease in the afternoon leading to mostly sunny skies. Conditions will be dry with some breezy winds in the afternoon. High temperatures will top out right near the average for the date of 51 degrees.

This evening, winds will be breezy then gradually ease. Lows will dip to the mid-20s under partly clear skies.

Weather, natural disasters & climate news and information.