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 SUN JAN 21 2018

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

14-21 In 1930...a protracted cold spell occurred when low temperatures
        plunged below zero on 8 consecutive days.  The coldest low
        temperatures of 20 degrees below zero on the 17th and 19
        degrees below zero on the 16th were record minimums for
        the dates.  High temperatures during the period ranged from
        18 on the 18th to zero on the 20th.  Two degrees on the
        15th was a record low maximum temperature for the date.
15-23 In 1962...a protracted cold spell kept metro Denver in the
        deep freeze for more than a week.  From the 15th thru the
        23rd...low temperatures were zero or below for 9 consecutive
        days...but a daily record low was set only on the 22nd when
        the temperature dipped to 14 degrees below zero.  A record
        low maximum for the date was also set on the 22nd when the
        temperature climbed to only 11 degrees.  The coldest high
        temperature was 3 degrees above zero on the 21st...which did
        not break the record.  The protracted cold was broken for
        only a few hours on the afternoon of the 20th when chinook
        winds warmed the temperature to a high of 38 degrees before
        another surge of cold Arctic air plunged temperatures
        back into the deep freeze that evening.  The severe cold
        caused much damage to water systems.  A woman was frozen to
        death at Morrison.  There were other deaths attributable to
        the weather...including traffic deaths and heart attacks
        from overexertion.
18-24 In 2005...a week of mid-winter unseasonably warm weather
        pushed high temperatures into the 60`s or more on all
        but one day.  During the period...the highest temperature
        of 70 degrees on the 20th was a new record maximum for
        the date.  Low temperatures remained above freezing on
        4 of the days.
20-21 In 1973...a major storm produced 7.5 inches of snowfall at
        Stapleton International Airport where north winds gusted
        to 32 mph causing some blowing snow.
      In 2002...high winds developed over portions of the northern
        mountains and Front Range foothills.  Several trees were
        blown down in Gilpin County along State Highways 119 and
        46.  Wind gust reports included:  90 mph 11 miles north
        of Central City...83 mph near Fritz Peak...76 mph at Aspen
        Springs...and 80 mph at Nederland.  West winds gusted to
        only 39 mph at Denver International Airport on the 20th.
20-22 In 1937...a second incursion of cold Arctic in less than two
        weeks kept temperatures in the deep freeze for three days...
        even though only one temperature record was set during the
        period.  Temperatures were below zero for an estimated 53
        consecutive hours.  The below zero period would have
        been longer had the temperatures on the 20th not climbed
        to a high of 1 degree after a low of 8 degrees below zero.
        On the 21st...the high temperature of 1 degree below zero
        was a record low maximum for the date.  Low readings on
        both the 21st and 22nd were 9 degrees below zero.
      In 1971...high winds raked Boulder.  Wind gusts to 77 mph were
        recorded at the National Center for Atmospheric Research.
        Winds gusted to 83 mph in south Boulder and to 68 mph in
        downtown Boulder.  Minor personal injuries occurred...and
        reported damage to structures totaled 15 thousand dollars.
        On the 21st...northwest winds gusted to 44 mph at Stapleton
        International Airport.  The chinook winds warmed the
        temperature to a high of 69 degrees on the 20th...which
        equaled the record for the date.
      In 1993...sporadic high winds along the east slopes of the
        Front Range during the early morning hours of the 20th
        moved onto the foothills and plains by the 22nd.  Wind
        gusts of 55 to 65 mph were common.  Some significant wind
        reports included 82 mph at Rollinsville and atop Squaw
        Mountain west of Denver...and 75 mph on Rocky Flats.  At
        Stapleton International Airport...west winds gusted to 35
        mph on the 20th...44 mph on the 21st...and 55 mph on the
21    In 1897...west winds were sustained to 40 mph with gusts to
        45 mph.  The warm chinook winds produced a high temperature
        of 51 degrees and a low temperature of 36 degrees.
      In 1943...strong west winds gusted to 92 mph at Boulder
        Airport.  Strong winds were common along the foothills.
        Some damage occurred.
      In 1950...wind gusts to 50 mph produced some blowing dust at
        Stapleton Airport.
      In 1997...high winds along the Front Range foothills caused
        an empty 18-wheeler to overturn on I-70 near the Morrison
        and C-470 exits.  The truck landed on top of a passenger
        car traveling beside it.  The drivers received only minor
        injuries.  West-northwest winds gusted to 36 mph at Denver
        International Airport.
      In 2007...two storm moving to the south and east
        of the region...and the other brushing from the west...
        contributed to heavy snow along the Front Range Foothills...
        Urban Corridor and adjacent plains.  The heaviest snow fell
        south and east of Denver where a blizzard developed during
        the late morning and early afternoon hours.  In and near the
        Front Range Foothills and Palmer Divide...storm totals ranged
        from 6 to 15 inches.  Very strong winds produced extensive
        blowing and drifting snow along I-70...from just east of
        Denver to near Limon.  Sustained winds from 30 to 45 mph
        were measured with peak gusts to 60 mph.  As a result...snow
        drifts 2 to 4 feet in depth made some roads impassable with
        whiteout conditions reported.  North winds gusted to 40 mph
        at Denver International Airport.  Snowfall totaled 6.1
        inches at the site of the former Stapleton International
21-22 In 1972...wind gusts to 74 mph were recorded at the National
        Bureau of Standards in Boulder...while in downtown Boulder
        wind gusts to 56 mph were measured.  The strong winds
        overturned a plane at the Arapahoe County Airport.  A
        motorcyclist died of injuries when he was blown off a
        Boulder County road.  Northwest winds gusted to 39 mph
        at Stapleton International Airport on the 21st.
      In 1999...heavy snow developed across portions of metro
        Denver and in the foothills.  Snowfall totals included:
        8 inches in Golden Gate Canyon...Intercanyon...Rollinsville...
        and Parker; 7 inches at Aspen Springs...Gross Reservoir...
        Pine Junction...and 5 miles south of Sedalia; 6 inches at
        Highlands Ranch; and 5 inches at Eaglecrest...Eldorado
        Springs...and Louisville.  Snowfall totaled 2.6 inches at
        the site of the former Stapleton International Airport.
        On the 21st...north-northwest winds gusted to 31 mph at
        Denver International Airport.

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