Public Information Statement
Issued by NWS Denver/Boulder, CO
NOUS45 KBOU 110859
Public Information Statement
National Weather Service Denver/Boulder CO
259 AM MDT MON JUL 11 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 In 1872...heavy rainfall started at 4:00 PM and continued
into the night. The heavy rainfall damaged homes and
buildings in all parts of the city. Rainfall totaled
In 1888...the temperature reached 100 degrees in downtown
In 1954...the high temperature climbed to 102 degrees at
In 1970...a girl walking in a park in southeast Denver
received eye and facial injuries when lightning struck
nearby. Lightning also caused numerous power outages
and heavy rainfall produced local flooding at several
locations across metro Denver.
In 1974...large hail up to 1 1/2 inches in diameter fell in
In 1990...the worst hailstorm in American history in terms of
dollar damage at the time battered metro Denver. Storm
damage totaled 605 million dollars...as it cut a 5-to 10-mile
wide swath from just southeast of Estes Park to northeast of
Colorado Springs. Hail as large as baseballs (2.75 inches)
pounded metro Denver. Hardest hit areas were southeast
Boulder County...the Jefferson County Airport in Broomfield...
Arvada...east Wheat Ridge...southwest and south-central
Westminster...west Thornton...northwest...west-central and
downtown Denver...northeast and east-central Lakewood...just
east of Littleton...portions of Arapahoe County west of I-25...
and northern and central Douglas County near Castle Rock
and Franktown. Golf ball to baseball size hail severely
damaged roofs on thousands of homes and buildings...battered
tens of thousands of automobiles...windows...signs...street
lights...and traffic signals...stripped paint...awnings...and
trim from buildings...punched holes in the roofs of two homes
in Arvada...knocked out power and telephone service to
thousands of homes and businesses...defoliated thousands of
trees...ripped up greens and fairways on a number of golf
courses...and severely damaged several aircraft tied down at
Jefferson County Airport. Hail the size of baseballs fell
for several minutes in Old Town Arvada. Later...golf ball
size hail and heavy rain pummeled two northwest Denver
amusement parks. Hardest hit was Elitch Gardens Amusement
Park where 47 people were injured and received treatment
for bumps...cuts...and bruises at local hospitals. Many of the
injured were stranded on rides during the storm when power
failed. Hail clogged storm sewers...causing rain water to
back up 3 to 6 feet deep on some roads and intersections in
Arvada. Several basements were flooded. In some places
hail was washed into drifts several feet deep. In addition...
the storm spawned 2 small tornadoes. One touched down
briefly in Lakewood near 6th Avenue and Kipling Blvd....but
did no damage. In Castle Rock...a tornado (F1) did heavy
damage to some homes and vehicles in the Founders Village
development near Ridge Road.
In 2001...lightning struck two homes in Thornton. Most of the
damage was confined to the attics of both homes. Hail as
large as 3/4 inch in diameter fell in Keenesburg...Longmont...
and near Boulder.
11-12 In 1872...heavy rain from 4:00 PM until 2:00 AM caused much
damage. Rainfall totaled 1.76 inches.