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Public Information Statement
National Weather Service Denver/Boulder CO
259 AM MST TUE NOV 11 2025

...Today in metro Denver weather history...

10-11 In 1911...a strong cold front produced snow and a cold wave.
        The temperature dropped 68 degrees from a high of 66 degrees
        at 12:40 PM on the 10th to a low of 2 degrees below zero at
        7:15 AM on the 11th.  The low temperature of 23 degrees at
        midnight on the 10th was also the high temperature on the
        11th.  Northeast winds were sustained to 42 mph with gusts
        to 51 mph.  Snowfall was only 2.5 inches.
      In 1982...up to 4 inches of snow fell over the higher terrain
        between Denver and Colorado Springs.  Winds gusted to 50
        mph along the foothills.  Rainfall totaled 0.27 inch
        with only 0.1 inch of snow on the 11th at Stapleton
        International Airport where north winds gusted to 39 mph.
        Dense fog with visibilities as low as zero persisted all day
        on the 10th.
10-14 In 2014...an Arctic cold front on the 10th...associated with a
        strong storm system over the northern Rockies blasted into
        northeast Colorado.  The temperature in Denver plummeted
        from the high of 64 degrees at 4:37 pm to 34 degrees by
        5:53 pm.  The temperatures continued to fall and dropped
        into the teens by early evening.  The Arctic airmass
        remained entrenched over the region through the morning of
        the 14th...with the high temperatures failing to reach
        the teens from the 11th through the 13th.  This was the first
        time since records have been taken in Denver...dating back to
        1872...that there were three consecutive days with the
        maximum temperatures remained below 20 degrees in the month
        of November.  In addition to the frigid temperatures...0.1
        inch of snowfall was observed on 11th at Denver International
        Airport...which marked the first measureable snowfall for the
        season. An additional 2.2 inches of snowfall was measured on
        the 12th.  Several temperature records were broken.  A
        record low max of 16 degrees on the 11th broke the previous
        record of 19 set back in 1916.  A record low max of 6 degrees
        on the 12th broke the previous record of 9 degrees...also set
        in 1916.  The record low of -13 on the 12th...shattered the
        previous record of -4 degrees set back in 1872.  Even more
        impressive...the record low of -14 degrees on the 13th broke
        the previous record of -3 degrees set back in 1916. The
        sudden drop in temperatures on the 10th...followed by several
        days of sub-freezing temperatures chilled trees to the core.
        The record drop in temperatures...preceded by mild fall
        temperatures...damaged or killed scores of trees across the
        I-25 Corridor and northeast plains. At the time...the trees
        were not finished with the hardening process that enables
        them to withstand winter weather. Many were instantly flash-
        frozen...and some would not show signs of damage until spring
        of 2015. Of the 2.2 million trees in the city of Denver
        alone...tens of thousands were killed from the November frost.
        Denver estimated a citywide loss of more than 10 million
        dollars.
11    In 1901...a trace of rain fell in the morning...and a trace of
        snow fell in the afternoon.  This was the only snowfall and
        precipitation for the month...ranking it the driest November
        on record...along with November of 1899 and 1949.  The month
        also ranks as the second least snowiest November...along with
        Novembers in other years.
      In 1903...northwest winds sustained to 45 mph with gusts to
        56 mph warmed the temperature to a high of 56 degrees.
      In 1912...rain changed to snow...which became heavy...and totaled
        6.5 inches over downtown Denver.  Precipitation was 1.02
        inches...the greatest calendar day precipitation ever recorded
        in November.  Northeast winds were sustained to 27 mph with
        gusts to 29 mph.
      In 1919...light snow fell from an apparent clear sky during the
        early afternoon.  The first snow was observed at about 12:40
        PM and continued at least 30 minutes before clouds could be
        seen forming...followed by the sky becoming totally cloudy.
        During this time the temperature fell from 50 degrees at
        noon to only 18 degrees at 100 PM and plunged to 6 degrees
        at 5:45 PM.  A low temperature of 2 degrees was recorded
        overnight.  Northeast winds were sustained to 33 mph with
        gusts to 36 mph between noon and 1:00 PM behind an apparent
        Arctic cold front.  Snowfall was only 0.1 inch.
      In 1949...north winds gusted to 50 mph at Stapleton Airport.
        A trace of rain fell.  Another trace of rain on the 15th was
        the only precipitation of the month...making the month one of
        the driest Novembers on record and the least snowiest with
        no snow.  This was the first November since 1882 without
        snow.
      In 1959...strong northwest winds struck Boulder and the
        foothills causing some damage.  West winds gusted to
        37 mph at Stapleton Airport.
      In 1995...strong downslope winds gusting to 84 mph blew out
        a few car windows in Boulder County.  Winds gusted to
        69 mph at Golden...Lakewood...and Table Mesa in Boulder.
        West-northwest winds gusted to 43 mph at Denver
        International Airport.
      In 2000...heavy snow occurred in the foothills southwest
        of Denver and over Monument Ridge south of Denver.
        Snowfall totals included:  6.5 inches near Parker...
        6 inches near Bergen Park...5 inches at Genesee and
        near Sedalia...and 4 inches at Coal Creek Canyon and
        St. Mary`s Glacier.  Snowfall totaled 1.6 inches at
        the site of the former Stapleton International Airport.
      In 2003...strong downslope winds developed along the Front
        Range.  Peak wind reports included 91 mph atop Blue
        Mountain near Wondervu and 75 mph in Boulder.
        Damaging winds downed power lines in Boulder County.
        North of Golden...a semi-truck was blown over by the
        winds near the intersection of State Highways 72 and 93
        atop Rocky Flats.  At the same location...blowing rocks
        shattered several car windows at an RTD Park and Ride.
        West winds gusted to 40 mph at Denver International
        Airport.
11-12 In 1922...from the 11th to the 12th...a major storm dumped
        14.1 inches of snowfall over downtown Denver.  The most
        snow on the ground was 10.5 inches at 6:00 PM on the 12th.
        North winds were sustained to 21 mph on the 11th.
        Temperatures were generally in the teens and 20`s.
      In 1964...from the 11th to the 12th...strong winds in Boulder
        caused power outages and minor damage.  Winds gusted to 42
        mph in downtown Boulder.  At Stapleton International Airport
        west winds gusted to 36 mph on the 11th and 35 mph on
        the 12th.
      In 1976...from the 11th to the 12th...snow and freezing drizzle
        caused icing on bridges...overpasses and some main roads.
        The elevated portion of I-70 was closed for a time during
        the afternoon of the 11th.  Snowfall totaled only 0.8 inch
        at Stapleton International Airport...where northeast winds
        gusted to 20 mph on the 11th.
      In 1989...on the 11th and 12th...the temperature climbed to a
        maximum of 76 degrees on both days...setting new record highs
        for each day.
      In 1995...from the 11th to the 12th...hurricane force downslope
        winds whipped across the Front Range foothills overnight.
        The National Center for Atmospheric Research in Boulder
        registered a peak wind gust to 124 mph with several more
        wind gusts over 100 mph. Utility poles and power lines were
        downed...leaving several hundred homes in Boulder without
        power.  Windows were blown out of cars in Boulder.  Other
        reports of strong wind gusts included:  108 mph atop Squaw
        Mountain west of Denver...104 mph at Table Mesa in Boulder...
        99 mph at Golden Gate Canyon...85 mph at the Rocky Flats
        Environmental Technology Site...69 mph at Jefferson County
        Airport near Broomfield...and 62 mph in Lakewood.
        West-northwest wind gusts to 40 mph were recorded at Denver
        International Airport on the 12th.
      In 2018...a period of moderate to heavy upslope snowfall to
        occurred in the Front Range Mountains and Foothills...and
        urban corridor mainly west of I-25. The foothills of Boulder
        and Jefferson counties received the greatest snowfall.
        Storm totals included: 14 inches...4 miles west of Boulder...
        Genesee and near Tiny Town; 13 inches...2 miles southwest of
        Boulder; 12.5 inches...4 miles northeast of Nederland; 12
        inches near Roxborough State Park and Schaffer`s Crossing;
        11.5 inches near Jamestown; 11 inches near Pinecliffe; 10.3
        inches at the National Weather Service in Boulder; 10 inches
        near Conifer and near Niwot; 9 inches...4 miles east of Gold
        Hill; 8.5 inches near Greenland; 8 inches near Monument and
        Wheat Ridge; 7.5 inches near Louisville; with 5 to 7 inches
        in Arvada...Castle Rock...Erie...Lafayette...Longmont...Ken Caryl...
        and Rocky Flats. At Denver International Airport...2.6 inches
        of snowfall was observed.
11-14 In 1970...heavy snowfall totaled 7.2 inches at Stapleton
        International Airport where northeast winds gusted
        to 22 mph on the 12th and 14th.  Most of the snow...
        4.2 inches...fell on the 12th.

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