Public Information Statement
Issued by NWS Denver/Boulder, CO

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Public Information Statement
National Weather Service Denver/Boulder CO
259 AM MST THU DEC 22 2016

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

17-24 In 1924...a prolonged cold spell occurred after mild
        temperatures during the first half of the month.  Most
        low temperatures dipped below zero with the coldest
        reading of 15 degrees below zero occurring on the 24th.
        The high temperature of only 5 degrees on the 18th was
        a record low maximum for the date.
18-24 In 1998...a vigorous cold front with north winds gusting as
        high as 38 mph at Denver International Airport on the 18th
        dropped temperatures from a high of 51 degrees to a low of
        just 6 degrees before midnight.  The Arctic air mass that
        settled over metro Denver produced intermittent light snow
        and a week-long protracted cold spell that caused low
        temperatures to plunge well below zero for 6 consecutive
        nights.  The coldest temperature was 19 degrees below zero
        on the morning of the 22nd.  High temperatures climbed only
        into the single digits on 4 consecutive days...from the 19th
        through the 22nd.  At least 15 people...mostly homeless...
        were treated for hypothermia at area hospitals.  The bitter
        cold weather was responsible...either directly or indirectly...
        for at least 5 fatalities.  Three of the victims died
        directly from exposure.  The cold weather also caused
        intermittent power outages.  Following the cold snap...
        thawing water pipes cracked and burst in several homes and
        businesses...causing extensive damage.  Only one temperature
        record was set.  The high temperature of only 7 degrees on
        the 19th set a record low maximum for the date.
19-23 In 1990...a surge of very cold Arctic air invaded metro
        Denver.  Many temperature records were broken as the
        mercury remained at or below zero for 85.5 hours at
        Stapleton International Airport...making it the third
        longest period of subzero readings in 118 years of record
        keeping.  On the morning of the 22nd...the mercury plunged
        to 25 degrees below zero...which equaled the all time record
        low temperature for the month set on December 24...1876.
        In the foothills southwest of Denver at Tiny Town...the
        mercury plunged to 33 degrees below zero on the morning
        of the 21st.  On the same morning at Castle Rock the
        temperature dipped to 26 degrees below zero.  During
        the period...other daily temperature records were set at
        Denver...including:  record low maximum of 3 degrees below
        zero on the 20th and a record low of 17 degrees below zero
        on the 23rd.  The record low was equaled with 16 degrees
        below zero on the 20th and 21 degrees below zero on the
        21st.  Snowfall totaled 2.7 inches at Stapleton
        International Airport from the 19th through the 21st.
20-22 In 1933...strong downslope winds produced a warm spell.
        Low temperatures of 43 degrees on both the 20th and 21st
        and 41 degrees on the 22nd were record high minimums for
        those dates.  High temperature of 67 degrees on the 21st
        was a record maximum for the date.  High temperatures of
        56 degrees on the 20th and 69 degrees on the 22nd were
        not records; however...the 69 degrees was the warmest of
        the month.  West to northwest winds were sustained to
        20 and 24 mph on the 21st and 22nd respectively.
20-23 In 1918...light snowfall on each day totaled 12.0 inches
        over downtown Denver.  Northeast winds were sustained
        to 16 mph on the 21st.
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.
21-22 In 1969...strong winds raked the eastern foothills in Boulder
        and Jefferson counties.  Wind gusts to 115 mph were
        recorded at the National Center for Atmospheric Research in
        Boulder...while in downtown Boulder winds gusted to 75 mph.
        Some damage occurred.
      In 1981...a snow storm dumped 3 to 8 inches of snow across
        eastern Colorado.  Snowfall totaled 6.8 inches at Stapleton
        International Airport where north winds gusted to only
        17 mph.
      In 2011...large scale lift from an upper level low combined
        with a deep easterly upslope flow behind a cold front to
        produce heavy snow in and near the Front Range Foothills
        and Palmer Divide. Storm totals ranged from 1.5 to 3 feet in
        the Front Range Foothills...with 1 to 1.5 feet along the
        Urban Corridor. In the Front Range Foothills and Palmer
        Divide...storm totals included: 36.5 inches...7 miles
        southwest of Boulder; 32 inches...12 miles northwest of
        Golden; 28 inches at Genesee; 24.5 inches...3 miles west of
        Jamestown; 23 inches at Bergen Park; 21 inches at Evergreen
        and Gross Reservoir; 19 inches near Eldorado Springs and 3
        miles west-southwest of Conifer; 17 inches...4 miles south-
        southwest of Tiny Town; and 13.5 inches...15 miles north of
        Elizabeth. Along the Urban Corridor...storm totals included:
        18 inches in Golden; 14.5 inches in Boulder...13 inches at
        the National Weather Service in Boulder; 12.5 inches...5 miles
        south-southwest of Arapahoe Park; 12 inches at Lone Tree;
        11.5 inches in Broomfield; 11 inches in Arvada...4 miles
        northwest of Elbert...Niwot and Wheatridge; 10 inches in
        northwest Denver; with 7.3 inches at Denver International
21-23 In 1924...heavy snowfall totaled 7.9 inches over downtown
        Denver.  During the storm north to northeast winds were
        sustained to 21 mph.  Temperatures were quite cold...ranging
        from a high of 24 degrees on the 21st to a low of 5 degrees
        below zero on the 23rd.
      In 1964...high winds were recorded along the eastern
        foothills.  A wind gust to 100 mph was registered at
        Jefferson County Airport near Broomfield.  In Boulder...
        where many thousands of dollars in damage occurred...warm
        chinook winds gusted in excess of 45 mph downtown.  A wind
        gust to 82 mph was recorded at the National Center for
        Atmospheric Research in Boulder.  Heavy damage to power roads was reported at Evergreen...Golden...
        and Boulder.  Several people were injured by wind-caused
        accidents.  West winds gusted to 53 mph on the 22nd and
        to 51 mph on the 23rd at Stapleton International Airport
        where some blowing dust occurred.  The chinook winds warmed
        temperatures in Denver to highs of 68 degrees on the 22nd
        and 71 degrees on the 23rd.
22    In 1885...a windstorm produced sustained west winds to 48 mph.
        The winds were strong all afternoon and evening.
      In 1892...terribly strong winds hit the foothills above
        Boulder.  The wind was described as a young tornado...but
        likely was straight line in nature.  Winds in Boulder
        remained calm.
      In 1901...the passage of an apparent cold front produced north
        winds sustained to 48 mph with gusts as high as 60 mph.
      In 1922...a major storm dumped 8.0 inches of snow in downtown
      In heavy snow fell over downtown Denver
        where 8.0 inches of new snow were measured.  Northwest winds
        were sustained to 26 mph.  The cold front and snowfall
        abruptly broke a week of warm weather with high temperatures
        in the 50`s and 60`s.
      In 1977...high winds unroofed a mobile home in Broomfield.
        Wind gusts reached 93 mph at Table Mesa in south Boulder
        and 74 mph at Rocky Flats.  West winds gusted to 52 mph
        at Stapleton International Airport.
      In 1988...high winds hit many foothills areas.  Recorded wind
        gusts reached 95 mph just north of Boulder and 80 mph on
        Table Mesa.  The strong winds caused power outages around
        Boulder.  West winds gusted to 45 mph at Stapleton
        International Airport.
      In 1990...the all-time lowest recorded temperature in December...
        25 degrees below zero...occurred.  The same temperature was
        also reached on December 24...1876.
22-23 In 1926...snow was heavy and totaled 6.7 inches in downtown
        Denver.  Northeast winds were sustained to 17 mph with
        gusts to 18 mph on the 23rd.
      In 1979...heavy snow blanketed metro Denver.  Total snowfall
        at Stapleton International Airport was 6.9 inches...and north
        winds gusted to 20 mph.  Most of the snow...5.7 inches...fell
        on the 22nd.
      In 1984...strong chinook winds howled along the Front Range
        foothills.  At Table Mesa in southwest Boulder...gusts
        reached 108 mph on the morning of the 23rd.  Gusts to 79
        mph were clocked in Golden Gate Canyon.  Gusts to 94 mph
        were reported in east Boulder.  The winds flattened a two
        floor cinder block building under construction in Boulder...
        causing 75 thousand dollars damage.  Flying debris from the
        building slightly injured a policeman.  A chain link
        fence was blown down.  Dozens of windows and roofs were
        damaged in Boulder...along with mobile homes and cars.
        Numerous trees and power lines were downed.  A giant
        plastic bubble dome was blown apart and collapsed...causing
        at least 100 thousand dollars damage.  West winds gusted
        to 41 mph at Stapleton International Airport on the 23rd.
22-24 In 2009...A winter storm produced moderate to heavy snow
        across parts of the Front Range and adjacent plains. In
        the foothills...storm totals included: 11.5 inches near
        Eldorado Springs...10 inches...3 miles southeast of
        Pinecliffe; 9 inches at Genesee...2 miles southwest of
        Golden and Ken Caryl; 8 inches...3 miles west of Jamestown
        and White Ranch Open Space; 7 inches...4 miles east-
        northeast of Nederland.  Across the Urban Corridor and
        adjacent plains...storm totals included: 9 inches...2 miles
        west of Parker; 8 inches at Watkins; 7 inches...2 miles
        west-southwest of Byers...12 miles southwest of Buckley
        AFB and 3 miles northeast of Parker. At Denver
        International Airport...6.1 inches of snowfall was observed.

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