Public Information Statement
Issued by NWS Denver/Boulder, CO
NOUS45 KBOU 120859
Public Information Statement
National Weather Service Denver/Boulder CO
259 AM MDT TUE JUL 12 2016
...Today in metro Denver weather history...
1-18 In 1874...a streak of 18 consecutive days of 90 degrees
tied for second with another streak that was later set
in the summer of 1901. The record of 24 consecutive days
was established in the summer of 2008.
1-31 In 2012...it was the hottest July on record in Denver since
weather records began in 1872. The average temperature for
the month was 78.9 degrees which was 4.7 degrees above
normal. There were 27 days in which the high temperature
equaled or exceeded 90 degrees...which established a new
record. There were also 7 days in which the temperature
equaled or exceeded 100 degrees which tied the record
set in 2005.
6-23 In 1901...a streak of 18 consecutive days of 90 degrees
tied for second with another streak set in the summer of
1874. The record of 24 consecutive days was established in
the summer of 2008.
7-25 In 1934...a streak of 15 consecutive days of 90 degrees
ranked 5th on the list of hot streaks. The record of
24 consecutive days was established in the summer of
11-12 In 1872...heavy rain from 4:00 PM until 2:00 AM caused much
damage. Rainfall totaled 1.76 inches.
12 In 1881...during the early evening...a brisk rain fell for
30 minutes from a nearly clear sky containing not one
tenth of clouds with the sun shining brightly. Rainfall
was 0.16 inch.
In 1885...thunderstorms produced widespread lightning across
the city during the evening. Several people were injured
when their homes were struck by lightning.
In 1954...the high temperature reached 101 degrees at Stapleton
In 1962...lightning struck and killed a Denver man...while he
was assisting a co-worker with his car.
In 1971...the temperature climbed to a high of 101 degrees at
Stapleton International Airport.
In 1974...hail to 3/4 inch in diameter fell in Castle Rock.
In 1991...hail to 2 inches in diameter fell in Thornton with
golf ball size hail in Brighton. Dime size hail was
recorded in the City of Denver. Very heavy rain caused
flooding across metro Denver. Water was up to 2 feet deep
in parts of Golden where one foot of water was reported in
the lot of a mobile home park. Flood water washed away part
of a parking lot at the Colorado School of Mines in Golden.
Heavy rain caused a rock slide and flooding along I-70 in
the foothills just west of Denver. Flood waters were a foot
deep at the intersection of I-70 and I-25 just north of
downtown Denver. A funnel cloud was sighted just east of
the Rocky Mountain Arsenal.
In 1996...very heavy rainfall from a fast moving thunderstorm
dumped 2 to 3 inches of rain within an hour over southern
Jefferson County. Two people were killed near the town
of Buffalo Creek when a 20-foot wall of water flooded
the area. Utility poles and trees were uprooted; cars...
propane tanks...and bridges were destroyed in the flood`s
path. Entire buildings were moved from their foundations
and heavily damaged by the floodwaters. The first fatality
occurred along State Highway 126 when the driver of a
pick-up truck was washed off the road by the deadly wall of
water. The second death occurred farther upstream when a
man in a 5th-wheel trailer was washed away. This was the
second disaster to strike the area in the last couple of
months. The community was already recovering from a
wildfire which burned about 12 thousand acres of forest land
in late May. With the forest burned by fire...very little
vegetation was available to slow the storm`s runoff...which
resulted in the flash flood. Power...water...and sewer
service were heavily damaged in the flood and...in some
cases...beyond repair. The cost of repairing the roads and
water system in the area was estimated at around a half
million dollars. Elsewhere across metro Denver...severe
thunderstorms produced hail...damaging winds...and small
tornadoes. Weak tornadoes (F0) were reported in Broomfield...
3 miles east of Englewood...and in Dacono. No damage was
reported...except a trampoline was blown into a window and
several trees were downed in Broomfield. Thunderstorm
wind gusts estimated as high as 60 mph blew a fence down
in Louisville where winds also toppled a tree near a house.
The house received only minor damage. Large hail...strong
winds and heavy rain caused substantial property damage
in portions of southeastern Boulder and northern Jefferson
counties. Damage estimates in the Broomfield area alone
were about 1 million dollars. Winds gusted to 81 mph in
Broomfield. Large hail...3/4 to 1 1/2 inches in diameter
fell in Evergreen...Lakewood...Englewood...Broomfield...near
Morrison...northeast of Boulder...and just east of Denver
In 2000...heavy rain fell across a portion of the Hi Meadow
Fire burn area near Buffalo Creek...causing localized
flooding. About 3/4 inch of rain fell in 30 minutes over
Miller Gulch. Some culverts become plugged by debris from
the fire. As a result...small sections of a U.S. Forest
Service road along Miller Creek were washed out. Lightning
struck a home in Castle Rock...causing extensive damage to
the roof...attic...and second floor.
In 2011...severe thunderstorms developed over parts of Adams
and Denver Counties. At Denver International Airport...a
severe thunderstorm produced a peak wind gust to 66 mph...
with another gust to 59 mph measured in Denver. In
Commerce City...the intense winds blew down a large tree.