Public Information Statement
Issued by NWS Denver/Boulder, CO
NOUS45 KBOU 090959
Public Information Statement
National Weather Service Denver/Boulder CO
259 AM MST THU FEB 9 2017
...Today in metro Denver weather history...
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
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.
6-10 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
8-9 In 1898...rain changed rapidly to snow during the late evening
of the 8th and continued through the early afternoon of the
9th. Snowfall totaled 6.0 inches in the city. Northeast
winds were sustained to 26 mph with gusts to 30 mph on
In 2001...heavy snow fell across metro Denver mainly in and
near the eastern foothills. Snow totals included: 12 inches
atop Crow Hill and near Evergreen; 10 inches in Evergreen and
near Morrison; 9 inches at Genesee; 8 inches atop Lookout
Mountain and near Littleton and Bailey; 6 inches at Arvada
and Ken Caryl Ranch; and 5 inches in Broomfield...Chief Hosa...
and Thornton. Snowfall totaled 5.1 inches at the site of
the former Stapleton International Airport. Temperatures
dipped to 15 degrees below zero at Denver International
Airport on the morning of the 9th...setting a new record
minimum for the date.
In 2002...high winds in the foothills on the 8th spread over
the plains on the 9th and caused much blowing dust and snow
and blizzard conditions east and northeast of metro Denver.
I-70 was closed from just east of Denver to the Kansas state
line. Zero visibilities coupled with snowpacked and slick
roads caused multiple car accidents in southern Weld County.
High winds developed in the foothills on the 8th with gusts
to 71 mph on Rocky Flats and to 75 mph at the National Center
for Atmospheric Research Mesa Lab in Boulder. The high
winds continued on the 9th with gusts to 83 mph near Fritz
Peak...70 mph at Evergreen...and 67 mph at Parker. Northwest
winds gusted to 55 mph on the 8th and to 58 mph on the 9th at
Denver International Airport where the surface visibility
was reduced to as low as 1 mile in blowing dust on the 9th.
In 2008...strong downslope winds developed in and near the
Front Range Foothills. Peak gusts included: 88 mph at
Georgetown...85 mph at Berthoud Pass...81 mph at the NCAR
Mesa Lab...78 mph at the National Wind Technology Center...
at 76 mph at Floyd Hill. At Denver International Airport...
gusty west winds to 48 mph were observed on the 8th.
9 In 1886...north winds were sustained to 42 mph...the highest
winds of the month that year.
In 1893...northwest bora downslope winds were sustained to
to 40 mph with gusts as high as 70 mph in the city.
In 1960...the lowest pressure reduced to sea level ever
recorded in Denver...28.83 inches (976.4 mb.)...occurred.
The actual station pressure of 23.770 inches was also the
lowest ever recorded.
In 1967...northwest winds gusted to 51 mph at Stapleton
International Airport. Winds were strong and gusty all
In 1988...high winds occurred in and near the foothills.
Winds gusted to 96 mph in east Boulder. As many as 1600
homes lost power when wires were downed by the wind.
Some windows were blown out of cars near Rocky Flats
south of Boulder where winds were clocked at 85 mph.
In Broomfield...winds were recorded to 68 mph at
Jefferson County Airport.
In 2009...high winds occurred in and near the foothills of
Boulder and northern Jefferson Counties. Peak wind gusts
included 81 mph at the National Wind Technology Center
and 6 miles northwest of Boulder.
9-10 In 1934...rain changed to heavy snow on the afternoon of
the 9th and continued through the day on the 10th.
Snowfall totaled 7.4 inches in downtown Denver.
North winds were sustained to 24 mph on the 10th.
In 1972...heavy post-frontal snowfall totaled 6.2 inches at
Stapleton International Airport where northeast winds
gusted to 46 mph on the 9th. Temperatures plunged from
a high of 51 degrees on the 9th to a low of 16 on the
morning of the 10th.
In 1981...the season`s coldest Arctic air mass rolled into
metro Denver plunging temperatures from 10 below to 20
degrees below zero. Bitter north winds gusting as high
as 36 mph sent wind chill temperatures to 50 below zero.
Two to four inches of snow fell over metro Denver with
6 to 12 inches in the foothills. A Boulder man died
of hypothermia while cross country skiing in the
mountains west of the city. Snowfall totaled only
1.5 inches at Stapleton International Airport where the
minimum temperature on the morning of the 10th was 5
degrees below zero. The temperature that day warmed to
to a high of only 9 degrees.
In 2003...high winds occurred in and near the eastern
foothills. The highest wind gusts recorded: included
80 mph atop Fritz Peak and 73 mph atop Blue Mountain and
at the National Wind Technology Center on Rocky Flats
south of Boulder. At least 4 multi-car accidents
occurred along State Highway 93...between Golden and
Boulder when blowing snow caused whiteout conditions.
Northwest winds gusted to 36 mph at Denver International
Airport on the 10th.
9-11 In 1965...heavy snowfall totaled 6.2 inches at Stapleton
International Airport where northeast winds gusted to
In 1993...the same storm that dumped heavy snow in the
mountains combined with an Arctic cold front to produce
heavy snow across metro Denver. Upslope snows of 4 to 8
inches were common with some areas receiving nearly a foot.
Ten inches of new snow were measured in Parker and 7 inches
in southeast Denver. At Stapleton International Airport...
snowfall totaled 8.1 inches. Strong winds combined with the
snowfall to produce near-blizzard conditions over the
plains closing many roads east of Denver. North winds
gusted to only 18 mph at Stapleton International Airport on