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Public Information Statement
National Weather Service Denver/Boulder CO
259 AM MDT TUE JUL 15 2025

...Today in metro Denver weather history...

7-25  In 1934...a streak of 15 consecutive days of 90 degrees...from the
        7th to the 25th...ranked 5th on the list of hot streaks.  The
        record of 24 consecutive days was established in the summer of
        2008.
13-5  In 2008...a streak of 24 consecutive days of 90 degrees...from
        July 13th to August 5th...shattered the previous record of 18
        consecutive days established in 1901 and 1874. Ironically...
        no 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.
14-15 In 1985...from the 14th into the 15th...thunderstorms dumped
        heavy rain and hail at numerous locations along the Front
        Range from Denver north.  Some of the heaviest rain fell
        in northern and western suburbs of Denver.  Up to 2.6
        inches of rain drenched Arvada...and Thornton was soaked
        with 2 inches in 45 minutes.  At least 5 homes in Arvada
        suffered extensive damage from water and mud...and many
        streets and basements were flooded.  In southern Jefferson
        County...11 homes were struck by lightning.
15    In 1879...a terrific hailstorm occurred in the vicinity of
        of Buffalo Station on the South Park Railroad in the
        South Platte River canyon about 39 miles south of Denver.
        Stones as large as hen`s eggs fell thick and fast and broke
        nearly every pane of glass in the windows of the building.
        A "waterspout" or cloudburst caused much loss of property
        from flash flooding on a nearby gulch.  The torrent of
        water caused a deafening roar as it uprooted trees and
        carried huge boulders and other debris.  It struck the
        house and sawmill simultaneously and carried them away
        like straws...leaving little behind.  The water continued
        to rush down the gulch for several hours.  Serious damage
        was done to the South Park Railroad.  The track and
        roadbed were destroyed for several miles.  At about the
        same time...heavy rains in the vicinity of the headwaters
        of Cherry Creek produced a rapid rise in the creek...which
        drowned a few head of cattle and washed away two footbridges
        and some fences.  Only 0.10 inch of rainfall was recorded in
        Denver.
      In 1896...a thundestorm produced sustained southwest winds to
        40 mph with gusts to 46 mph.
      In 1902...the temperature reached a high of 100 degrees in
        downtown Denver...which was a record maximum for the date.
      In 1929...a thunderstorm did considerable damage to property
        in the eastern portion of the city.  Heavy hail ranging
        in size from 1/4 to 3/4 inch in diameter...severe lightning...
        and high winds accompanied the heavy rain.  Basements were
        flooded...and streets were impassable in places for several
        hours due to the heavy rainfall.  Lightning damaged several
        telephone poles.  Hail did extensive damage to gardens and
        flowers.  The hail was up to a foot deep in places.  There
        was no estimate of damage from the storm.  A thunderstorm
        produced only a trace of rain and east winds to 24 mph in
        downtown Denver.
      In 1959...thunderstorm rain totaled 0.41 inch in 8 minutes
        and winds gusted to an estimated 50 mph near downtown
        Aurora where half inch diameter hail was also reported.
        After the storm moved to the east...complete double rainbows
        were observed from the Weather Bureau office at Stapleton
        Airport.
      In 1962...hail pelted the area in Adams County around Henderson
        and Brighton...causing extensive damage to corn...grain...
        beets...and row crops.  Crop damage was estimated at 250
        thousand dollars.
      In 1963...a man received severe burns when struck by lightning
        while painting a building in south Denver.
      In 1965...a State Patrolman sighted a tornado near Bennett.  It
        touched down over open ground...but caused no damage.
      In 1967...heavy rains flooded streets and underpasses in south
        Denver.  Heavy rain and minor wind damage were reported in
        Wheat Ridge...Aurora...Englewood...and Littleton.  Basements
        were flooded and power disrupted.  The clouds and rain
        resulted in a high temperature of only 72 degrees...which
        was a record low maximum for the date.
      In 1974...a severe lightning storm damaged several homes and
        caused a number of power outages in both Denver and western
        Arapahoe counties.
      In 1975...lightning killed a girl west of Boulder.
      In 1982...winds gusted to 60 mph at Stapleton International
        Airport...and strong winds blew down walls at a construction
        site in Aurora where a nearby tree was uprooted.
      In 1985...0.79 inch of rain fell in 30 minutes at Castle
        Rock.  Much of the town lost power when lightning struck
        the town`s transformer.
      In 1992...a man was struck by lightning while horseback riding
        near Castle Rock.  Two people were struck by lightning near
        Highlands Ranch in south metro Denver.  A man was struck by
        lightning while riding in the back of a pick-up truck in
        Franktown.  All received minor injuries.  Strong
        thunderstorms moved through east metro Denver...producing
        large hail and flash flooding.  Hail up to 1 1/4 inches in
        diameter fell near Buckley Air National Guard Base.
        Rainfall of 1 to 3 inches fell in Aurora in less than an
        hour...leaving water up to 18 inches deep in some areas.
        Thunderstorm rainfall was measured at 0.97 inch at
        Stapleton International Airport...where 3/8th inch diameter
        hail fell and south winds gusted to 44 mph.
      In 1993...dime size hail fell in Golden.  National Weather
        Service observers at Stapleton International Airport
        sighted a small rope-like funnel overhead for about 3
        minutes before it dissipated.
      In 1994...a small...short-lived tornado caused damage to a house
        under construction in Parker.
      In 1995...thunderstorm winds of unknown strength downed trees
        and branches...damaging a porch and nearby cars in Denver.
      In 1998...hail to 7/8 inch in diameter fell near Keenesburg.
      In 2000...this date marked the end of a near record hot streak
        for metro Denver.  The high temperature at Denver
        International Airport equaled or exceeded the 90-degree
        mark for 17 consecutive days...from June 29th.  This was
        one day short of equaling the all time record.  The
        record of 18 consecutive days was set in two different
        years...July 1st-18th...1874 and July 6th-23rd...1901.
      In 2005...severe thunderstorms produced large hail over
        southeast metro Denver.  Hail as large as 1.75 inches
        in diameter fell in southwest Aurora along with 7/8 inch
        hail in Centennial.  Hail to 3/4 inch in diameter was
        measured near Centennial Airport and near Watkins.
      In 2015...A severe thunderstorm produced a peak wind gust to
        60 mph from the northwest at Denver International Airport.
        In addition...0.06 inches of rainfall was also observed.
      In 2016...large hail ranging in size from 1 to 2 inches in
        diameter struck Aurora...Castle Rock...Centennial...Greenwood
        Village and southeast Denver. The hail shattered
        windshields and caused extensive damage to vehicles.
15-16 In 2006...a brief mid July hot spell resulted in two 100
        plus degree high temperatures and two daily maximum
        temperature records.  The high temperature climbed to
        101 degrees on the 15th and 103 degrees on the 16th
        at Denver International Airport.

$$