Longmont, Colorado

... Wind Chill Advisory in effect until 9 am MST this morning...

The National Weather Service in Denver has issued a Wind Chill
Advisory... which is in effect until 9 am MST this morning.

Temperatures from 5 below to 15 below zero will combine with a
slight breeze to produce very cold wind chills around the Denver
area this morning. Conditions will be worst in the eastern suburbs
where it is coldest and the wind is blowing at 10 to 15 mph. Wind
chills will be in the 20 to 30 below range in that area... with 10
to 20 below elsewhere. At the colder temperatures frostbite can
occur on exposed skin in under 30 minutes.

Precautionary/preparedness actions...

A Wind Chill Advisory means that cold air and winds will combine
to generate low wind chills. This will result in frost bite and
lead to hypothermia if precautions are not taken. If you must
venture outdoors... make sure you wear a hat and gloves.



Gimmestad

... Today in Metro Denver weather history...

2-17 in 1939... more than 2 weeks of unseasonably warm weather
        made the month the 3rd warmest on record. Seven daily
        temperature records were set... including the all time
        record high temperature for the month of 79 degrees on
        the 5th. Daytime highs were balmy with 14 days in the
        60's and 70's. Low temperatures dipped to freezing or
        below on only 5 days. The period was dry with only a
        trace of snow on the 12th.
3-15 in 1972... a protracted cold spell held an icy grip on Metro
        Denver when maximum temperatures never reached above
        freezing for 10 consecutive days from the 3rd through
        the 12th and minimum temperatures dipped below zero on
        eleven consecutive days from the 5th through the 15th.
        Daily low temperature records were set with 15 degrees
        below zero on the 5th... 17 degrees below zero on the 6th...
        and 18 degrees below zero on the 10th. Daily record low
        maximum readings were set with 3 degrees on the 6th and
        6 degrees on the 9th. The very cold temperatures were
        caused by 3 to 5 inches of snow cover and a Canadian air
        mass.
7-9 in 1919... an apparent Arctic cold front brought extreme cold
        and light snow to the city. Snowfall totaled only 2.5
        inches on the 7th and 8th. Temperatures dipped to lows
        of 14 degrees below zero on the 8th and to 20 degrees below
        zero on the 9th. Both readings were daily record minimums.
        High temperatures were only 4 degrees on the 8th and 7
        degrees on the 9th.
      In 1923... a major storm dumped 13.5 inches of snowfall on
        downtown Denver. The apparent Post-frontal snowfall
        started during the late afternoon of the 7th and continued
        through the evening of the 9th. Temperatures dipped from a
        high of 66 degrees on the 7th with west winds sustained to
        35 mph to a low of only 14 degrees on the 9th... with north
        winds sustained to 25 mph.
8-9 in 1943... 4.5 inches of snow fell in downtown Denver. This
        was the only measurable snow of the month. North winds
        were sustained to 26 mph on the 8th.
      In 2003... snowfall totaled 3 to 6 inches across Metro Denver.
        Snowfall was heavier in and near the foothills with
        8.0 inches measured in Boulder and 10 miles southwest of
        Sedalia. Snowfall was 3.9 inches at the site of the
        former Stapleton International Airport. Most of the snow
        fell on the 8th... as the snow ended shortly after midnight.
        North winds gusted to 29 mph at Denver International
        Airport.
      In 2008... an upslope snowstorm produced heavy snow in and near
        the foothills of Boulder... Jefferson and Douglas counties...
        and along the Palmer Divide south of Denver. Storm totals
        in the foothills ranged from 8 to 15 inches. In Boulder
        and in areas west and south of Denver... storm totals ranged
        from 6 to 13 inches. The snowfall measurement at Denver
        International Airport was 3.9 inches.
8-10 in 1985 a slow moving storm dumped 10 to 20 inches of snow
        over the northeast plains... closing schools and businesses
        in many areas along the Front Range north of Denver. At
        Stapleton International Airport... snowfall totaled 9.9 inches
        with a maximum snow depth of 7 inches on the ground. North
        winds gusted to 24 mph. The snow caused long air traffic
        delays at Stapleton International Airport on the 9th.
      In 1997... persistent light to moderate snowfall combined
        with strong and gusty northerly winds to produce much
        blowing and drifting snow across Metro Denver. The
        hardest hit areas were south of Denver where north winds
        at speeds of 20 to 35 mph with gusts to 45 mph caused near
        whiteout conditions. The strong winds produced drifts
        2 to 4 feet deep and dropped wind chill temperatures
        well below zero. Sections of both I-25 and I-70 and other
        roads were closed as travel became impossible due to
        blowing snow. Numerous traffic accidents were reported and
        a handful of people were stranded during the snowstorm.
        Snowfall totals included: 22 inches at Conifer... 13 inches
        at Castle Rock... 12 inches at Parker... and 8 inches in
        southeast Aurora. Snowfall totaled 5.5 inches at the
        site of the former Stapleton International Airport.
        North winds gusted to 36 mph at Denver International
        Airport on the 10th.
8-12 in 1932... the second longest sub-zero period on record in
        Denver occurred. The temperature fell below zero shortly
        after 1:00 PM on the 8th and remained below zero for 92
        hours until 9:00 am on the 12th. The lowest temperature
        recorded during this period was 13 degrees below zero on
        both the 9th and 11th. That temperature on the 11th was
        a record low for the date. High temperatures of 4 on the
        8th... 5 below zero on the 9th... 1 below zero on the 10th...
        and 6 below zero on the 11th were record low maximum
        temperatures for those dates. Light north winds at 5 to
        10 mph were accompanied by occasional light snow... which
        totaled only 2.2 inches.
9 in 1898... the very cold air mass that settled over the
        city behind an apparent cold front on the 7th plunged
        temperatures to a low of 20 degrees below zero. The
        high temperature climbed to only 5 degrees.
      In 1910... Chinook west winds sustained to 46 mph warmed
        the temperature to 60 degrees... the warmest reading
        of the month that year.
      In 1919... the minimum temperature dipped to 20 degrees
        below zero in downtown Denver... setting a record low
        for the date.
      In 1984... high winds occurred in the foothills with a gust
        to 69 mph recorded at Golden Gate Canyon west of Denver.
        West winds gusted to 36 mph at Stapleton International
        Airport.
      In 1992... high winds were recorded over most of the day in the
        Front Range foothills. Wind gusts to 95 mph were measured
        in The Table Mesa area of Boulder. Northwest winds gusted
        to 43 mph at Stapleton International Airport.
      In 1993... a weather observer in Boulder recorded a wind gust
        to 73 mph. North winds gusted to 37 mph at Stapleton
        International Airport.
      In 1998... Metro Denver and areas in the foothills received
        the first significant snowfall in more than a month.
        The upslope snow event deposited up to 17 inches in the
        foothills with generally 4 to 8 inches across Metro
        Denver west of I-25. Snowfall totals included 17 inches
        at Crescent Park and 16 inches in nearby Coal Creek Canyon.
        Other snow amounts included: 16 inches at tiny town; 14
        inches at chief hosa... Evergreen... and genesee; 13 inches in
        conifer; 12 inches at nederland; 11 inches in Eldorado
        canyon; 9 inches just west of boulder; 8 inches in boulder;
        and 7 inches in Broomfield and Golden. Only 3.6 inches of
        snow fell at the site of the former Stapleton International
        Airport. Northeast winds gusted to 26 mph at Denver
        International Airport.
9-13 in 1961... cold Arctic air produced a protracted cold period.
        The temperature plunged to 16 degrees below zero on the
        10th... establishing a new record for the date and the
        coldest reading since 25 degrees below zero on February 1...
        1951. Low temperatures dipped below zero on 5 consecutive
        days with 9 degrees below zero on the 9th... 16 below on the
        10th... 10 below on the 11th... and 12 below on both the 12th
        and 13th. High temperatures reached only 3 degrees on the
        10th and 6 degrees on the 11th.