957
NOUS45 KBOU 070959
PNSBOU
COZ030>051-072300-

Public Information Statement
National Weather Service Denver/Boulder CO
259 AM MST FRI FEB 7 2025

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

30-7  In 1985...a cold front on the 29th produced a protracted cold
        spell as Arctic air remained entrenched across metro Denver.
        While the only daily temperature record set was a low
        maximum reading of 2 degrees on February 3rd...minimum
        temperatures plunged well below zero on 9 consecutive days.
        The coldest readings were 15 degrees below zero on January
        31st and 14 degrees below zero on February 5th.
31-8  In 1963...warm weather that began with the strong chinook
        winds on the 31st and 1st continued through the 8th.
        Maximum temperatures through the period ranged from 52
        degrees on the 2nd to 76 degrees on the 5th...which was
        a new record high for that date.
31-12 In 1899...a protracted cold spell lasted almost two weeks.
        Low temperatures plunged below zero on all days but
        February 9th with a reading of 6 degrees.  The coldest
        low temperature of 22 degrees below zero on February 6th
        was a record low for the date.  Low temperatures of 20
        degrees below zero occurred on both February 11th and 12th...
        but only the 11th remains as the record minimum for the
        date.  High temperature of only 5 degrees below zero on
        February 11th was a record low maximum for the date.  High
        temperatures climbed to only zero degrees on both February
        2nd and 3rd...but were not records.  Intermittent light snow
        or flurries fell during the period.  The most snowfall...2.0
        inches...occurred on February 2nd.
1-9   In 1883...a protracted cold period occurred when low
        temperatures dipped below zero for 9 consecutive days.
        Low temperatures ranged from 22 degrees below zero on
        the 4th to 2 degrees below zero on the 1st and 6th.  High
        temperatures ranged from 10 below zero on the 3rd to
        23 on the 9th.  Several temperature records were set
        that still stand today.  Record lows of 18 below and
        22 below zero occurred on the 3rd and 4th.  Record low
        maximum readings of 2 below and 10 below zero occurred on
        the 2nd and 3rd.  The high of only 10 below zero on the
        3rd is the coldest maximum temperature ever recorded in
        Denver.
5-11  In 1978...the 5th marked the start of a record 7 consecutive
        days of dense fog at Stapleton International Airport.  The
        heavy fog reduced the visibility to 1/4 mile or less for a
        period of time on each of these days.  Light snow and/or
        freezing drizzle occurred on most days.  Fog reducing
        visibility to less than 7 miles was recorded at Stapleton
        International Airport on 11 consecutive days through the
        15th.  During the period 5-14...the cold thick fog deposited
        heavy rime ice up to 5 inches thick on power lines and poles
        over a wide area of eastern Colorado...causing a major
        electrical power outage disaster.
6-7   In 1929...5.0 inches of snow fell in downtown Denver behind
        a Canadian cold front.  Temperatures plunged...but no records
        were set.  Low readings dipped to 3 degrees below zero on
        the 6th and 9 degrees below zero on the 7th.  Highs climbed
        to 5 degrees on the 6th and to only 1 degree below zero on
        the 7th.
      In 1933...post-frontal light snowfall totaled 3.0 inches over
        downtown Denver.  Northeast winds were sustained to 28 mph
        with gusts to 32 mph on the 6th.  The very cold air mass
        plunged temperatures from a high of 60 degrees on the 5th
        to lows of 10 degrees below zero on the 6th and 16 degrees
        below on the 7th.  High temperature of only 4 degrees below
        zero on the 7th was a record low maximum for the date.
      In 2019...a storm system produced a period of light to moderate
        snowfall.  Storm totals included: 7.5 inches in Boulder...7
        inches in Broomfield and Lakewood...6.5 inches in Lafayette...
        6 inches at Lyons; 5.9 inches at the National Weather Service
        in Boulder with 5 inches in Arvada.  At Denver International
        Airport...3.1 inches of snowfall was observed.
6-8   In 2020...a strong upper level jetstream coupled with a very
        deep fetch of Pacific moisture...produced a prolonged period
        of heavy snow and strong winds in the mountains. Peak wind
        gusts above timberline ranged from 55 to 65 mph. The winter
        storm made travel nearly impossible at times...including
        Interstate 70 west of Georgetown. In the Front Range
        mountains and foothills...storm totals included: 40 inches at
        Loveland Ski Area; 33 inches near Berthoud Summit; 30 inches
        at Eldora and Winter Park ski areas; 26 inches at Aspen
        Springs; 16 inches around Evergreen.  Elsewhere storm totals
        included:  11 inches in Littleton and Wheat Ridge; 10 inches
        near Cherry Hills Village...with 7 inches at Centennial
        Airport.  At Denver International Airport...5.3 inches of
        snowfall was observed.
6-10  In 1933...3:00 PM on the 6th marked the start of a protracted
        cold period through 8:00 AM on the 10th when the temperature
        was below zero for 86 out of 88 hours.  The cold period was
        interrupted on the 8th at 9:00 AM when the temperature was
        1 degree above zero and at 10:00 AM when the temperature was
        8 degrees above zero.  Four temperature records were set.
        High temperatures of 4 degrees below zero on the 7th...8
        degrees on the 8th...and 5 degrees below zero on the 9th were
        record low maximums for those dates.  The only record low
        temperature record was 14 degrees below zero on the 10th.
        The lowest temperature reached during the period was 16
        degrees below zero on both the 7th and 8th...which were not
        records.
7     In 1940...a distant thunderstorm was recorded.  This was only
        the second ever recorded in the city during February since
        1900.
      In 1976...strong chinook winds were reported along the
        foothills with sustained winds at 46 mph and gusts to 69
        mph at the National Center for Atmospheric Research in
        Boulder.  Wind gusts of 70 to 90 mph were recorded at other
        locations in Boulder.  Northwest winds gusted to 44 mph at
        Stapleton International Airport.
      In 1979...strong west winds gusted as high as 99 mph near
        Boulder.  The winds caused ground blizzards that closed
        several highways around Boulder.  Some cars were forced off
        the road...and a truck was overturned.  Wind gusts of 50 to
        80 mph were common in and near the foothills.  Northwest
        winds gusted to 33 mph at Stapleton International Airport.
      In 1988...a wind gust to 82 mph was clocked at Rollinsville in
        the foothills southwest of Boulder.
      In 1999...strong chinook winds developed in the foothills.
        Peak wind reports included:  90 mph at the National
        Center for Atmospheric Research Mesa Lab near Boulder and
        88 mph at Wondervu in the foothills southwest of Boulder.
        West to southwest winds gusted to only 48 mph at Denver
        International Airport.
7-8   In 1936...a sharp blast of frigid Arctic air was of short
        duration.  At 11:00 AM on the 7th the temperature was
        39 degrees...but dropped to only 1 degree within an hour.
        A more gradual decrease occurred through the night to
        a low temperature of 25 degrees below zero shortly after
        6:00 AM on the 8th.  This was the lowest temperature ever
        recorded in February.  (The record was equaled on February
        1...1951.)  Snowfall of 1.0 inch occurred in the cold air.
        During the day on the 8th...northwest chinook winds from 12
        to 16 mph...and as high as 21 mph warmed the temperature
        to a high of 35 degrees at 7:00 PM.  This was a rise in
        temperature of 60 degrees in 13 hours.  Unofficially...the
        temperature dipped to a low of 30 degrees below zero at
        Denver Municipal Airport on the morning of the 8th.
      In 1956...5.5 inches of snow fell at Stapleton Airport where
        east-northeast winds gusted to 23 mph on the 7th.
      In 1980...an upslope storm dumped 4 to 10 inches of snow over
        the plains and as much as 22 inches in the foothills.
        Traffic was snarled and some schools were closed.  Two
        runways were closed for 3 hours at Stapleton International
        Airport...where snowfall totaled 6.5 inches and north winds
        gusted to 25 mph.  Most of the snow fell on the 7th.

$$