Public Information Statement
Issued by NWS Denver/Boulder, CO

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NOUS45 KBOU 130859

Public Information Statement
National Weather Service Denver/Boulder CO
259 AM MDT THU JUL 13 2017

...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 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
13    In 1902...west winds were sustained to 42 mph with gusts to
        48 mph.
      In apparent dry microburst produced northeast winds
        sustained to 41 mph.
      In 1961...hail as large as 1 inch in diameter was reported
        near Commerce City.
      In 1982...a tornado touched down briefly south of Parker.  No
        damage was reported.
      In 1985...thunderstorms drenched the Highlands Ranch area of
        northern Douglas County with 1.50 inches of rain in just
        30 minutes.  Half an inch of rain fell in 15 minutes in
      In 1986...a lightning bolt struck a church steeple in
        Littleton...toppling it to the ground.
      In 1989...thunderstorm winds blew down trees and bent a metal
        basketball fixture just north of Castle Rock in the Surrey
        Ridge area.
      In 1993...1 inch diameter hail was measured in Lakewood.
      In 1995...lightning struck and injured an assistant coach
        during a baseball game at Highlands Ranch south of Denver.
      In 1996...3/4 inch diameter hail fell in Lochbuie with 1 1/2
        inch hail measured in Brighton.  Thunderstorm winds gusted
        to 69 mph at Bennett.  The strong winds were responsible
        for flipping three semi-trailer trucks onto their sides
        along I-70...3 miles east of Bennett.  A few cars were also
      In 2001...heavy thunderstorm rain caused flash flooding over
        south metro Denver.  Three inches of rain reportedly fell
        near the Greenwood Village Police Department in the span
        of 15 minutes.  The heavy rain caused Toll Gate Creek to
        overflow...flooding low lying areas along Parker Road.
        Heavy rainfall also caused local flooding along streets
        near the Denver Technology Center.  A severe thunderstorm
        dumped hail to 1 3/4 inches in diameter near Castle Rock.
      In 2003...maximum temperature of 100 degrees was a record high
        for the date.
      In 2009...severe thunderstorms produced wind gusts to 70 mph
        near Parker and Strasburg.  At Denver International
        Airport...west-northwest winds gusted to 40 mph.
      In 2011...severe thunderstorms produced extensive damage as
        they moved across the Urban Corridor. At Denver
        International Airport alone...large hail up to golfball
        size...very heavy rain and wind gusts to 59 mph caused
        substantial damage to 40 planes and stranded approximately
        1500 passengers overnight. Frontier and United Airlines
        were hardest hit as dozens of planes were taken out of
        service for repairs; forcing the cancellation of at least
        220 flights over the next several days. Damage to the
        aircrafts alone was nearly five million dollars. In
        addition...83 cars in airport parking lots were damaged...
        along with some police cars and maintenance vehicles. In
        Watkins...two people suffered minor injuries and 35 to 40
        homes were damaged. As many as two hundred residents in a
        mobile home park were left homeless by the storm...forcing
        the Red Cross to open a shelter at Bennett High School.
        The trailer park contained 52 mobile homes...14 recreational
        vehicles...3 houses and a commercial building. Hailstones
        the size of softballs cratered the north sides of the
        mobile homes. Some farmers in the area said they lost as
        much as 85 percent of their total wheat crop. Power lines
        were also damaged which affected about 1200 customers in
        Watkins. The strong winds also flipped over a tractor-
        trailer rig on I-70 near Watkins Road. Insurance claims for
        the Watkins...Bennett and Brighton areas was estimated to be
        seventeen million dollars. The total damage estimate across
        the entire Urban Corridor...was near one hundred sixty five
        million dollars...and included 17200 automobile claims and
        12600 homeowner claims. In addition...thunderstorms
        producing very heavy rainfall...caused flash flooding in the
        Four Mile Canyon burn scar west of Boulder. Three homes
        reportedly had water up to the windows with water flowing
        into structures at Fourmile Canyon Road and Gold Run Road.
        The heavy rain caused a 4-ft surge along Fourmile Creek
        through Orodell and into the entry of Boulder Creek.
        Several roads were affected which restricted access to the
        area. Roads were closed due to water and debris. Private
        bridges and drives were washed out and several residents
        were stranded and later rescued. Numerous cars were damaged
        in debris flows and several structures suffered flood
        damage but were not destroyed.
13-5  In 2008...a streak of 24 consecutive days of 90 degrees
        shattered the previous record of 18 consecutive days
        established in 1901 and 1874. new single
        day record high temperatures were set in the month of July.
        In August however...a record of 104 degrees was set on the
        1st...and another record of 103 degrees was set on the 2nd.
        In addition...a record low min of 70 degrees was set on
        August 2nd.

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