Public Information Statement
Issued by NWS Denver/Boulder, CO

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COZ030>051-222300-

Public Information Statement
National Weather Service Denver/Boulder CO
645 PM MST SAT JAN 21 2017

...This week in metro Denver weather history...

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.
20-22 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
        22nd.
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.
22    In 1899...a cold front produced northeast sustained winds
        to 50 mph with gusts to 60 mph in the city.
      In 1951...a heavy windstorm struck Boulder.  Minor damage was
        reported.  Strong post-frontal east winds gusted to 45 mph
        at Stapleton Airport.
      In 1990...strong winds of 50 to 90 mph buffeted the foothills.
        No significant damage was reported.  West winds gusted to
        37 mph at Stapleton International Airport.
      In 1992...strong winds raked the eastern foothills with a wind
        gust to 58 mph recorded at Rocky Flats just northwest of
        Denver.  West winds gusted to only 25 mph at Stapleton
        International Airport.
      In 2003...only a trace of snow fell at the site of the former
        Stapleton International Airport.  This along with a trace
        of snow on the 1st was the only snow of the month...which
        equaled the record for the least snowiest January first
        set in 1934.
22-23 In 1982...wind gusts up to 101 mph were clocked at Wondervu.
        Wind gusts of 60 to 80 mph were common along the Front
        Range foothills from Boulder north.
22-26 In 1948...the longest period of snowfall on record (92 hours
        and 3 minutes) occurred in downtown Denver where a total of
        13.6 inches of snow fell.  At Stapleton Airport...19.0 inches
        of snow fell...making it the heaviest snow in January and the
        5th heaviest snow of record at that time.  North winds were
        sustained to a velocity of 23 mph on the 25th...but generally
        the winds were light throughout the storm.  The snow
        disrupted traffic...but street clearing was begun soon after
        it became apparent that the snow would be heavy.  Over the
        5 days...temperatures ranged from a high of 48 degrees on
        the 22nd to a low of 1 degree on the 26th.  Most readings
        were in the teens and 20`s during the storm.
23    In 1872...a brisk northerly wind set in about noon...blew
        almost a gale about 6:00 PM...and continued brisk until
        night.  A light snow commenced during the late afternoon
        and continued all night.
      In 1886...northwest winds were sustained to 40 mph in the city
        around sunrise.  A cold wave accompanied the strong winds.
      In 1897...a vigorous cold front produced northeast winds
        sustained to 45 mph with gusts to 50 mph.  Temperatures
        plunged from a high of 59 degrees to a low of 11 degrees
        in the evening.  The very cold temperatures persisted
        through the 28th.
      In 1934...the date marked the last day of the longest period
        of consecutive days without measurable precipitation in the
        city.  The 52 day period began on December 3...1933.
      In 1988...one of the strongest windstorms in several years
        pounded the Front Range foothills from Colorado Springs
        north to the Wyoming border.  The highest wind gust at
        lower elevations was 105 mph recorded at Table Mesa in
        Boulder.  Other sections of Boulder recorded wind gusts of
        80 to 90 mph.  In Boulder...the high winds broke windows and
        damaged power lines and transformers.  Power outages were
        widespread and traffic lights were downed.  The winds blew
        down a partially constructed viaduct in east Boulder.  Nine
        unanchored concrete girders...each weighing 45 tons...were
        blown off their supports.  Cars were blown off I-70 near
        Morrison...and a tractor trailer and a mobile home were
        knocked over.  In Lakewood...an electric company crewman was
        burned while replacing a power line.  Wind gusts to 92 mph
        were clocked at Jefferson County Airport in Broomfield
        before the site anemometer was blown down by the wind.
        The strong winds spread over all the metro area with a
        northwest wind gust to 52 mph recorded at Stapleton
        International Airport.
      In 1992...high winds buffeted the eastern foothills.  A wind
        gust to 63 mph was recorded at Rocky Flats northwest of
        Denver.  West winds gusted to 40 mph at Stapleton
        International Airport.
      In 2002...low level upslope flow combined with an upper level
        jet stream created bands of heavy snow over portions of
        the Front Range foothills and metro Denver.  The areas
        hardest hit were the foothills of Jefferson and Douglas
        counties and the I-25 corridor from the southern suburbs
        of Denver to around Castle Rock.  Snow totals included:
        9 inches at Intercanyon...Roxborough State Park...and near
        Sedalia; 8.5 inches atop Crow Hill and near Tiny Town;
        8 inches at Ken Caryl and near Castle Rock; 7 inches in
        Lakewood; 6.5 inches at Littleton; and 6 inches in Castle
        Rock.  Only 3.6 inches of snow were measured at the site
        of the former Stapleton International Airport.
23-24 In 1921...heavy snowfall in downtown Denver totaled 8.0
        inches overnight.  Northwest winds were sustained to
        22 mph with gusts to 25 mph on the 24th.
24    In 1887...west winds sustained to 44 mph warmed the
        temperature to a high of 56 degrees in the city.
      In 1890...northwest winds sustained to 48 mph with gusts to
        60 mph warmed the temperature to a high of 63 degrees.
      In 1900...west winds were sustained to 44 mph with an
        extreme velocity of 46 mph.  The chinook winds warmed
        the temperature to a high of 57 degrees.
      In 1934...a trace of snowfall resulted in precipitation
        of 0.01 inch in downtown Denver.  This was the only
        measurable amount of precipitation for the month...making
        the month one of the driest January`s on record.
      In 1956...west-northwest winds gusted to 51 mph at Stapleton
        Airport.  Strong and gusty winds persisted throughout the
        day.
      In 1972...a west wind gust to 92 mph was recorded in Boulder
        at the National Bureau of Standards...while in downtown
        Boulder a wind gust to only 66 mph was measured.  In
        Denver...a car was demolished when the wind blew a traffic
        light pole onto it...and a wooden wall at a construction
        site was blown over damaging two cars.  Northwest winds
        gusted to 55 mph at Stapleton International Airport.
      In 1982...strong winds were again reported along the eastern
        foothills.  While the most damage occurred in the Fort
        Collins area...Boulder did not entirely escape.  Nine
        planes were damaged at the Boulder airport along with
        4 mobile homes and many cars in the Boulder area.  A
        school in Central City was damaged.  A water tank in
        Parker collapsed.  The strongest wind gust recorded was
        140 mph at Wondervu.  Wind gusts reached 92 mph in Boulder.
        Northwest wind gusts to 61 mph were recorded at Stapleton
        International Airport.
      In 1992...for the third day...high winds raked the eastern
        foothills.  Winds gusted to 105 mph at the National Center
        for Atmospheric Research in Boulder.  Several tractor
        trailers were overturned along State Highway 93...between
        Boulder and Golden.  Traffic lights and signs were knocked
        down in Boulder.  Other wind reports included:  86 mph at
        Rocky Flats...100 mph on Fritz Peak near Rollinsville...and
        93 mph in north Boulder.  West winds gusted to 37 mph at
        Stapleton International Airport.
24-25 In 1916...a trace of light rain...rare in Denver for January...
        occurred on both days.
      In 1946...high winds occurred in Boulder and along the
        foothills to the north.  A wind gust to 72 mph was recorded
        at Valmont.
      In 1947...strong winds were measured in Boulder.  Hourly wind
        gusts averaged 72 mph at Valmont east of Boulder.
      In 1950...heavy snowfall totaled 7.1 inches at Stapleton
        Airport and 6.8 inches in downtown Denver.
24-26 In 1970...a wind gust to 122 mph was recorded at the National
        Center for Atmospheric Research in Boulder on the 24th.
        Winds also gusted to 109 mph at NCAR on the 26th.  Most
        winds were estimated between 60 and 70 mph in Boulder.
        Damage...in most cases...was from broken windows and tree
        limbs and downed power lines.  A roof was blown off a
        house in Eldorado Springs south of Boulder.  A building
        under construction was damaged in Boulder.  Reported
        damage totaled 25 hundred dollars in Boulder.  Northwest
        winds gusted to 47 mph at Stapleton International Airport
        on the 24th.  In Denver...the chinook winds warmed the
        temperature to a record high of 68 degrees on the 24th.
25    In 1872...the greatest temperature change in one day...66
        degrees...from a low of 20 degrees below zero...a record
        low for the date...to a high of 46 degrees...occurred.
      In 1888...west winds sustained to 42 mph warmed the
        temperature to a high of 58 degrees.
      In 1890...northwest chinook winds gusting as high as 48 mph
        resulted in two temperature records.  High temperature
        of 72 degrees was a record maximum for the date.  Low
        temperature of only 48 degrees was a record high minimum
        for the date.
      In 1914...chinook winds from the northwest sustained to 46
        mph with gusts as high as 60 mph warmed the temperature
        to a high of 52 degrees.  The low temperature was only
        39 degrees.
      In 1923...snowfall of 1.3 inches was the only measurable
        snow of the month.
      In 1931...snowfall of 0.1 inch was the only measurable
        snow of the month.  The melted snow totaled only
        0.02 inch of precipitation...which was the only
        measurable amount of the month.  This resulted in the
        4th driest January on record.
      In 1964...high winds occurred in Boulder...Golden...and
        Broomfield where a wind gust to 80 mph was recorded at
        Jefferson County Airport.  Some power lines were downed.
        Damage to buildings and vehicles was also reported.
        West-northwest winds gusted to 46 mph at Stapleton
        International Airport.
      In 1971...the highest recorded wind gust in the State of
        Colorado...147 mph...occurred at the National Center for
        Atmospheric Research on the mesa in southwest Boulder.
        Wind gusts to 91 mph were measured at the National Bureau
        of Standards and to 87 mph in downtown Boulder.  A wind
        gust to 75 mph was recorded at Jefferson County Airport in
        Broomfield.  The strong winds caused widespread minor
        damage in Boulder.  Northwest winds gusting to 32 mph at
        Stapleton International Airport warmed the temperature
        to a high of 55 degrees.
      In 1980...a blizzard struck Denver right at the evening rush
        hours...causing massive traffic snarls and forcing the
        closure of I-25 north of Denver and I-70 east of the city
        as well as many other roads.  Hundreds of travelers were
        stranded.  Multi-car accidents involving as many as 50 cars
        were common.  Air traffic at Stapleton International Airport
        was stalled for 3 hours.  Winds gusted to 50 or 60 mph with
        visibility reduced to zero at times.  The high winds
        knocked out electrical power in Broomfield.  During the
        height of the storm...temperatures plunged from the freezing
        mark at mid-afternoon to only 5 degrees before midnight.
        Initial snowfall from the storm was only 3 to 5 inches
        across metro Denver with 4.1 inches measured at Stapleton
        International Airport where north wind gusts to 58 mph were
        recorded.
      In 1988...high winds pummeled the eastern foothills with a
        peak gust to 96 mph recorded near Rollinsville.  A gust to
        109 mph was recorded at Echo Lake.  West winds gusted to
        48 mph at Stapleton International Airport.
      In 1996...heavy snow fell along the Front Range foothills.
        Snow accumulations of 4 to 8 inches were measured from
        I-25 west into the foothills with lighter accumulations
        reported elsewhere.  Snowfall totaled only 0.9 inch at
        the site of the former Stapleton International Airport.
      In 2004...locally heavy snow fell across metro Denver.  The
        heaviest snow was south of Denver and in the foothills.
        Snowfall totals included:  9 inches near Indian Hills...
        8.5 inches near Franktown and 9 miles southwest of
        Sedalia...8 inches 7 miles southwest of Aurora...and 6
        inches in Highlands Ranch.  Snowfall was only 2.8 inches
        at the site of the former Stapleton International Airport.
        North winds gusted to 35 mph at Denver International
        Airport
      In 2008...Strong westerly winds blew out three windows at a
        Chipolte restaurant in Louisville.  Two people were taken
        to the hospital for minor cuts.  At Denver International
        Airport...northeast winds gusted to 35 mph.
25-26 In 1910...gale force westerly winds of great velocity struck
        Boulder.  Some damage was reported.  West winds were
        sustained to 45 mph in Denver on the 25th.
25-27 In 1897...a cold spell resulted in three temperature records.
        Low temperature of 14 degrees below zero on the 27th was
        a record minimum for the date.  High temperatures of only
        3 degrees on the 25th and 2 degrees on the 26th were record
        low maximums for the dates.  Very light snow or flurries
        fell on the 25th and 26th at times.
26    In 1902...the low temperature dipped to 20 degrees below zero.
      In 1916...sleet...grains of ice...a rare occurrence in Denver...
        fell for 3 hours and 15 minutes...covering the ground.
      In 1999...high winds developed in and near the foothills.
        Peak wind reports included:  82 mph in Boulder and at
        Jefferson County Airport near Broomfield...79 mph at
        the Rocky Flats Environmental Test Facility...and 72 mph
        at the National Center for Atmospheric Research Mesa Lab
        near Boulder.  West winds gusted to 40 mph at Denver
        International Airport where the temperature warmed to a
        high of 54 degrees.
26-27 In 1944...heavy snowfall totaled 8.0 inches in downtown
        Denver.  Most of the snow...7.0 inches...occurred on the
        26th when northwest winds were sustained to 17 mph.
      In 1973...at Stapleton International Airport...only 3.8 inches
        of snowfall were measured and north winds gusted to 40 mph
        causing some blowing snow...while over the Colorado eastern
        plains heavy snow accompanied by high winds created
        widespread blizzard conditions closing many highways.
      In 1994...the combination of an upper level storm system
        and moist upslope winds brought heavy snow and cold
        temperatures to metro Denver and much of eastern Colorado.
        Snowfall across metro Denver averaged 5 to 7 inches.
        Snowfall totaled 3.8 inches at Stapleton International
        Airport where east winds gusted to 21 mph on the 26th.
      In 2000...snow...heavy in the mountains...spread over the
        foothills and metro Denver.  Eight inches of snow were
        measured at Bergen Park and near Evergreen.  Snowfall
        totaled 3.8 inches at the site of the former Stapleton
        International Airport.
26-1  In 1888...a protracted warm spell lasted a week.  Maximum
        temperatures ranged from 62 degrees on the 29th to an
        all time record high for the month of 76 degrees on the
        27th.  Daily record high temperatures of 76...69...and 71
        occurred on the 27th...28th...and 30th respectively.
        Record high minimum temperatures of 47 and 34 occurred
        on the 26th and 27th.
27    In 1888...the highest recorded temperature in January...76
        degrees...occurred.
      In 1967...strong winds caused a power outage in Boulder.
      In 1984...this was the last day of 63 consecutive days
        with snow cover of one inch or more in Denver.  This
        longest period of snow cover on record began with the
        Thanksgiving weekend blizzard on November 26-27...1983...
        when 21.5 inches of snow fell at Stapleton International
        Airport.  Additional snowfall during December and
        January prolonged the event.  Snow depth on the ground
        to the nearest inch was measured once daily at 5:00 AM MST.
27-28 In 1899...snowfall totaled 6.2 inches in the city.  Northeast
        winds were sustained to 36 mph with gusts to 40 mph on the
        28th.
      In 1965...high winds raked the Front Range foothills.  West
        winds gusted to 89 mph on Table Mountain in Boulder...87 mph
        at Rocky Flats...and 54 mph at Stapleton International
        Airport.  Damage and minor injuries occurred in Boulder and
        western metro Denver.  Four men were injured by wind-
        caused accidents while working on construction...2 in Denver
        and 2 in Boulder.  There was extensive damage to power lines...
        buildings...signs...and trees.  Some minor accidents were
        caused by blowing dust and debris.  Blown dust accumulated
        2 to 3 feet deep on some lawns in northern metro Denver
        suburbs.  Dust blew into buildings and homes.
      In 1989...the heaviest snowstorm of the winter dumped 9 to 15
        inches of snow across metro Denver.  Snowfall totaled 8.8
        inches at Stapleton International Airport with most of the
        snow...8.6 inches...falling on the 28th.  Strong north winds
        gusting to 46 mph whipped the snow into 2-foot drifts and
        reduced visibility in blowing snow.  The foothills received
        up to 18 inches of snow.  The snow fell on a weekend...so
        closures and other disruptions were minimal.  The public
        reported thunder in Arvada...Wheat Ridge...and Boulder on the
        evening of the 27th.  A thunderstorm produced snow pellets
        at Stapleton International Airport during the early morning
        hours of the 28th.  This was the first thunderstorm in the
        city during January since 1932.
      In 1996...winds to hurricane force were reported across the
        Front Range foothills in the wake of a Pacific storm system.
        Recorded wind speeds included:  86 mph at the National Center
        for Atmospheric Research southwest of Boulder...86 mph atop
        Squaw Mountain west of Denver...and 75 mph at Jefferson
        County Airport in Broomfield.  West-northwest winds gusted
        to 48 mph at Denver International Airport on the 28th.
      In 2009...high winds buffeted the foothills of Boulder and
        Jefferson Counties.  Peak wind gusts included:  101 mph at
        Eldora Ski Resort...100 mph...6 miles northwest of Boulder;
        84 mph at NCAR Mesa Lab...79 mph...5 miles northwest of
        Boulder; and 75 mph at the National Wind Technology Center.
        In Nederland...a wind turbine recently installed was damaged
        by the high winds. A peak wind gust of 38 mph occurred at
        Denver International Airport on the 28th.
27-31 In 1951...a major storm dumped 10.1 inches of snowfall at
        Stapleton Airport.  Most of the snow...8.3 inches...fell on
        the 29th.  Cold Arctic air accompanied the snow.  Several
        temperature records were set...including record low maximum
        temperatures of 4 on the 28th and 4 below zero on the 29th
        and record low temperatures of 12 below zero on the 29th
        and 24 below zero on the 31st.  Temperatures were below
        zero for 45 consecutive hours.
28    In 1872...the low temperature dipped to 22 degrees below zero...
        a record minimum for the date.
      In 1909...gale force north winds were sustained to 45 mph
        behind an apparent cold front...which also produced a trace
        of snow.
      In 1986...a wind gust to 67 mph was recorded in Boulder.
        West winds gusted to 41 mph at Stapleton International
        Airport.
28-29 In 1956...snowfall totaled 5.5 inches at Stapleton Airport
        where east winds gusted to 32 mph on the 28th.
      In 1972...cold west winds buffeted Boulder.  A wind gust to 92
        mph was recorded at the National Bureau of Standards...while
        a gust to 76 mph was measured in downtown Boulder.  Two
        mobile homes were overturned in Boulder.  Other damage was
        minor.  Northwest winds gusted to 40 mph at Stapleton
        International Airport on the 28th.
      In 1987...strong winds buffeted the Front Range foothills and
        spread east over the plains.  The highest wind recorded was
        99 mph on the 29th at both the National Center for
        Atmospheric Research in Boulder and the Rocky Flats plant
        south of Boulder.  Wind gusts in excess of 80 mph were
        common.  A northwest wind gust to 54 mph was recorded at
        Stapleton International Airport on the 28th with a gust to
        41 mph on the 29th.  Planes were damaged at both the Boulder
        and Jefferson County Airports.  Hangars were also damaged at
        Jefferson County Airport.  Many windows were broken...signs
        toppled...and trees downed.  A brick wall was blown onto
        parked cars in Lakewood.  A couple of houses in Lakewood
        were unroofed...while falling trees damaged others.  Two
        people were injured by flying debris in Lakewood and Golden.
        Total insured damage along the Front Range was 10 million
        dollars making the wind storm the second most costly on
        record in Colorado at the time.
      In 1995...deepening upslope winds along the eastern foothills
        on the 28th gave way to periods of heavy snow during the
        night and early morning hours of the 29th.  Snow fell to a
        depth of 8 inches in both Golden and Boulder with up to a
        foot in the foothills.  Only 1.9 inches of snow fell at
        Stapleton International Airport...where east winds gusted
        to 22 mph on the 28th.
      In 2001...heavy snow fell across metro Denver.  The heaviest
        snowfall occurred from just south of Denver to around
        Castle Rock.  Snow amounts included:  12 inches east of
        Parker...9 inches near Elizabeth and in Littleton...8 inches
        near Castle Rock and in Parker...and 7 inches in Aurora.
        Snowfall totaled 6.0 inches at the site of the former
        Stapleton International Airport.
28-30 In 1887...winds were strong and gusty for three days in the
        city.  West and northwest winds were sustained to 56 mph
        on both the 28th and 29th and to 44 mph on the 30th.
        Temperatures warmed to a high of 57 degrees on the 29th.

$$



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