Public Information Statement
Issued by NWS Denver/Boulder, CO

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NOUS45 KBOU 250959

Public Information Statement
National Weather Service Denver/Boulder CO
259 AM MST MON DEC 25 2017

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

20-25 In extremely bitter cold spell occurred.  The
        temperature remained below zero for 115 hours in Denver...
        the longest sub-zero period on record.  The mercury dipped
        to 21 degrees below zero on the 21st...the coldest recorded
        temperature in over 20 years.  The cold was accompanied
        by winds that plunged chill factors to 50 to 70 degrees
        below zero.  Two people froze to death in Denver; both
        were found outside dead of exposure.  Numerous cases of
        frostbite were reported.  Hundreds of water pipes broke
        from the intense cold...water mains and natural gas lines
        also fractured...and electricity consumption reached record
        levels.  Light snow totaling 5.8 inches fell at times...and
        holiday traffic was delayed at Stapleton International
        Airport for several hours.  Eight daily temperature records
        were set at the time.  The all-time record low maximum
        temperature for the month of 8 degrees below zero on the
        21st still stands today.  Other temperature records still
        standing include record low maximum temperatures of 5
        degrees below zero on both the 22nd and 23rd and 4 degrees
        below zero on the 24th.
24-25 In 1891...heavy snowfall of 7.0 inches in downtown Denver
        provided a white Christmas.  Most of the snow...6.5 inches...
        fell on the 24th.  Northwest winds were sustained to 30
        mph with gusts to 40 mph on the 24th.
      In 1894...snow began falling during the evening of the 24th...
        ended during the early afternoon of the 25th...and totaled
        6.4 inches in downtown Denver.  Northwest winds were
        sustained to 26 mph with gusts to 30 mph on the 24th.  The
        maximum snow depth on the ground was 5 inches.  The high
        temperature was only 18 degrees on the 25th after a low of
        8 degrees.
      In 1980...strong chinook winds of 50 to 60 mph occurred in the
        foothills with a wind gust to 90 mph recorded at Wondervu.
        West winds gusted to 33 mph at Stapleton International
        Airport on the 25th.
      In 1997...a relatively rare Christmas snowstorm blanketed
        much of northeastern Colorado.  Snowfall in and near
        the Front Range foothills and south of metro Denver ranged
        from 5 to 8 inches. snow accumulations were
        generally 1 to 3 inches.  Snowfall totaled only 1.5 inches
        at the site of the former Stapleton International Airport.
        North winds gusted to 29 mph at Denver International
        Airport on the 24th.
      In 2012...a winter-like weather moved into northeast Colorado
        on Christmas Eve as an upper level trough and a strong cold
        front moved through the region. At Denver International
        Airport...2.5 inches of snow fell from Christmas Eve through
        Christmas morning.  The high temperatures on Christmas Day
        only reached 16 degrees...which was the coldest day of the
25    In 1873...northwest winds were sustained to 36 mph during
        the morning and to 48 mph in the evening.  The chinook
        winds warmed the temperature to a high of 53 degrees.
      In 1883...gusty very strong winds raked Boulder...causing
        11 hundred dollars in damage.
      In 1985...Table Mesa in Boulder was buffeted by wind gusts
        to 68 mph.
      In 1993...occasional high winds occurred over portions of the
        higher foothills west of Boulder and Denver.  A wind gust
        to 87 mph was recorded on Squaw Mountain...and a gust to 83
        mph occurred at Rollinsville.  Northwest winds gusted to
        to 35 mph at Stapleton International Airport.
      In 2007...a winter storm brought heavy snow to the Front Range
        of Colorado. The heaviest snow fell near the foothills of
        Boulder...Douglas and Jefferson Counties.  The snow caused
        accidents throughout the Denver metropolitan area.
        Gusty winds produced snow drifts from 2 to 3.5 feet
        in depth.  Total snowfall for the calendar day in Denver
        was 7.8 inches...setting a new record for Christmas day.
        The measurement was taken at the former Stapleton
        International Airport; the previous record was 6.2 inches...
        set in 1894.  Storm totals in the Front Range Foothills
        included:  13.5 inches at Coal Creek Canyon; 12 inches...5
        miles east-southeast of Aspen Park; 11 inches; 6 miles
        southwest of Kassler; 10.5 inches at Eldorado Springs.
        Elsewhere...storm totals ranged from 5 to 10 inches.
        In the Urban Corridor storm totals included:  9 inches
        near Elizabeth; 8 inches in southwest Denver...Highlands
        Ranch...Marston Reservoir and Wheat Ridge; 7.5 inches in
        Arvada; 7 inches in Centenniel and Lakewood; 6.5 inches
        in Aurora and 8 miles southeast of Watkins; 6 inches in
        Boulder...Englewood and Parker.  Elsewhere...storm totals
        ranged from 3 to 5 inches.
25-26 In 1904...after a warm Christmas Day with a high temperature
        of 50 degrees...a late day cold front plunged temperatures
        to a low of 7 degrees...produced northeast winds sustained
        to 40 mph with gusts to 54 mph...and produced 5.2 inches of
        snow overnight for a late white Christmas.  The maximum
        temperature on the 26th was only 16 degrees.
       In 2014...a winter storm brought a rare Christmas Day
        snowfall to the Front Range Foothills and Urban Corridor...
        from the afternoon of the 25th to the evening of the 26th.
        Storm totals included: 12.5 inches...4 miles west of Boulder;
        12 inches...4 miles southwest of Eldorado Springs and 4
        miles south of Golden; 11 inches at Genesee; 10 inches near
        Allenspark...5 miles west of Chatfield Reservoir...5 miles
        southwest of Golden and near Tiny Town; 8 inches in Lakewood
        and Louisville; 7.5 inches in Niwot; 7 inches in Longmont;
        with 6 inches in Broomfield and Frederick. At Denver
        International Airport...5.1 inches of snowfall was observed.
25-31 In 1980...temperatures were unusually warm during the week
        between Christmas and New Year`s.  High temperatures for
        the week ranged from the mid-50`s to the mid-70`s.  Four
        temperature records were set.  Record highs occurred on
        the 26th with 68 degrees...the 27th with 75 degrees...and
        the 30th with 71 degrees.  A record high minimum
        temperature of 41 degrees occurred on the 27th.

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