Public Information Statement
Issued by NWS Denver/Boulder, CO
NOUS45 KBOU 210859
Public Information Statement
National Weather Service Denver/Boulder CO
259 AM MDT FRI OCT 21 2016
...Today in metro Denver weather history...
18-23 In 2003...an extended warm spell resulted in 5 new temperature
records. The high temperature of 84 degrees on the 18th
equaled the record high for the date. High temperatures
of 86 degrees on the 19th...83 degrees on the 21st...and 84
degrees on the 22nd were record highs for the dates. Low
temperature of 49 degrees on the 23rd was a record high
minimum for the date. Low temperatures during the period
were in the 40`s and lower 50`s.
19-23 In 1906...heavy snowfall totaled 22.7 inches in the city over
the 5 days. Rain changed to snow on the evening of the
19th...and snow continued through the late afternoon of the
23rd. The heaviest amount of snowfall...16.0 inches...fell
from 8:00 PM on the 20th to 8:00 PM on the 22nd. The most
snow on the ground was 13.3 inches on the evening of the
23rd. This was the first snow of the season and the only
snow of the month. Winds during the storm were from the
north at sustained speeds of 20 to 30 mph each day.
Temperatures during the storm were generally in the 20`s.
20-21 In 2007...a storm system brought heavy snow to the southern
Denver suburbs as well as the Palmer Divide south of
Denver. Storm totals included: 7.5 inches near Castle
Rock...Lone Tree and Greenwood Village...with 6.5 inches at
Elizabeth. Snow drifts up to 2 feet deep were observed 6
miles south-southwest of Elizabeth. In the Denver
Stapleton area...2.0 inches of snow was observed.
In 2009...heavy snow developed along the Palmer Divide
south and southeast of Denver as a storm system tracked
across southern Colorado and northern New Mexico.
Storm totals included: 15 inches...15 miles north of
Elizabeth...9 inches...5 miles south-southwest of Arapahoe
Park; 8 inches in Highlands Ranch...5 miles south-
southeast of Sedalia; 6.5 inches...8 miles southwest of
Bennett and 6 inches in Parker. At Denver International...
only 1.5 inches of snowfall was observed.
20-22 In 1936...5.5 inches of snow fell over downtown Denver.
Most of the snow...4.5 inches...fell on the 20th.
21 In 1920...the rare event of snow from a thunderstorm
occurred in the city during the evening. Brilliant
flashes of lightning and loud peals of thunder were
first noted at 7:35 PM. Light rain began falling at
8:30 PM...and light moist snow began falling a few
minutes later. Some soft hail was also seen falling
with the rain and snow...but both melted almost as
fast as they fell. The hail only continued for a few
minutes...and the rain and snow ceased about 9:40 PM.
The snowfall was the first to occur in Denver this
season. The amount of precipitation at the station
measured only 0.01 inch...but heavier amounts were
reported from other parts of the city. Snowfall was
only a trace.
21-22 In 1978...heavy rain on the 21st changed to snow by daybreak
on the 22nd and continued the rest of the day. This was
the first measurable snowfall of the season...but totaled
only 1.7 inches at Stapleton International Airport where
east winds gusted to 29 mph. While only a trace of snow
covered the ground...precipitation totaled 1.27 inches.