Public Information Statement
Issued by NWS Denver/Boulder, CO

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NOUS45 KBOU 120959

Public Information Statement
National Weather Service Denver/Boulder CO
259 AM MST SAT NOV 12 2016

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

10-13 In Arctic cold front associated with a strong storm
        system over the northern Rockies blasted into northeastern
        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...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 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.
11-12 In 1922...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...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...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...the temperature climbed to a maximum of 76 degrees
        on both days...setting new record highs for each day.
      In 1995...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.
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.
12    In 1894...northeast winds were sustained to 42 mph with
        gusts to 48 mph behind an apparent dry cold front.
      In 1903...west winds sustained to 40 mph with gusts to
        45 mph warmed the temperature to a high of 57 degrees.
        A trace of snow was observed.
      In 1922...heavy snowfall of 8.5 inches was measured over
        downtown Denver.
      In 1974...strong winds gusting to over 80 mph caused local
        damage to houses and property along the foothills from
        Denver north. power lines
        suffered damage in Boulder.  West winds gusted to 41 mph
        at Stapleton International Airport.
12-13 In 1961...heavy snowfall totaled 5.6 inches at Stapleton
        Airport.  East-northeast winds gusted to only 20 mph.
      In 2011...hurricane force winds...up to 115 mph...downed trees
        in and power lines across the Front Range Mountains and
        Foothills. Scattered outages were reported in Gilpin
        County.  In Boulder...a woman received minor injuries when
        she was struck in the head by a falling tree limb. Three
        women near Georgetown received minor injuries when they
        were pelted by glass shards after a barrage of wind driven
        rocks and dirt shattered their windshield. Peak wind gusts
        included: 109 mph...6 miles north-northwest of Berthoud
        Pass; 101 mph atop Kenosha Pass...100 mph...2 miles south-
        southwest of Loveland Pass; 99 mph...7 miles west-northwest
        of Berthoud; 92 mph at Blackhawk; 90 mph...3 miles south-
        southwest of Boulder; 87 mph...2 miles west-northwest of
        Aspen Springs and at Pickle Gulch; 84 mph at Loveland Pass
        and Lyons; 82 mph at the National Wind Technology Center;
        80 mph at Dumont and 78 mph near Rollinsville and Ward.
        At Denver International Airport...west winds gusted to
        52 mph on the 12th.
12-15 In 1909...light snowfall totaled 6.7 inches in downtown
        Denver over the 4 days.  This was the first measurable
        snowfall of the season.  Northeast winds were sustained
        to 15 mph on the 12th.

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