Public Information Statement
Issued by NWS Denver/Boulder, CO
NOUS45 KBOU 200959
Public Information Statement
National Weather Service Denver/Boulder CO
259 AM MST FRI JAN 20 2017
...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
18-20 In 1958...snowfall totaled 6.9 inches at Stapleton Airport
where east-northeast winds gusted to 26 mph on the 18th.
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.
19-20 In 1935...snowfall of only 0.8 inch during the evening of
the 19th was the only measurable snowfall of the month.
The light snow developed behind an Arctic cold front as
temperatures plunged to a low of 13 degrees below zero
on the 20th. High temperature of only 2 degrees on the
20th was a record low maximum for the date. Northeast
winds were sustained to 16 mph on the 19th.
In 1986...chinook winds gusting to 39 mph at Stapleton
International Airport provided record breaking warmth.
The warmest temperature of the month...68 degrees on the
19th...was also a record high for the date. The low
temperature of 41 degrees on the 20th equaled the record
high minimum for the date.
In 1991...a strong cold front moved south across metro Denver.
Upslope conditions produced 3 to 6 inches of snow along the
Front Range with 5 inches in Westminster and 4 inches in
Thornton. Snowfall measured 4.9 inches at Stapleton
International Airport where north winds gusted to 31 mph.
20 In 1894...northwest winds were sustained to 40 mph with
gusts to 45 mph in the city.
In 1911...west chinook winds sustained to 46 mph warmed the
temperature to a high of 62 degrees.
In 1975...a warm chinook wind produced a west wind gust to
53 mph at Stapleton International Airport. Winds were
much stronger near the foothills...where 80 mph winds in
Boulder caused damage to homes...buildings...power lines...
In 1986...high winds buffeted the foothills from Denver north.
The strongest reported wind was 72 mph in Fort Collins. A
wind gust to 39 mph was reported at Stapleton International
Airport in Denver.
In 1996...high winds developed for a short time in the
Front Range foothills in the wake of a weak upper level
disturbance. Wondervu recorded a peak wind gust to 90 mph...
while winds gusted to 84 mph atop Squaw Mountain near
Idaho Springs. West winds gusted to only 29 mph at
Denver International Airport.
In 2011...a snowboarder and his dog were killed when he
triggered an avalanche in the backcountry northeast of
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