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Public Information Statement
National Weather Service Denver/Boulder CO
259 AM MDT FRI JUL 12 2024

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

1-18  In 1874...a streak of 18 consecutive days of 90 degrees...from
        the 1st to the 18th...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.
6-23  In 1901...from the 6th to the 23rd...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...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.
11-12 In 1872...heavy rain...from 4:00 PM on the 11th until 2:00 AM
        on the 12th...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
        Airport.
      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
        International Airport.
      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.

$$