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Public Information Statement
National Weather Service Denver/Boulder CO
259 AM MDT MON JUL 1 2024

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

29-2  In 1990...almost a year to date after the record breaking heat
        in early July 1989...the third longest heat wave in Denver
        history started.  From June 29th through July 2nd the
        temperature reached 100 degrees or more on four consecutive
        days.  The highest reading of 102 degrees occurred on the
        29th...30th...and 1st.  Combined with the 102 degree reading
        on June 27th this would have been the longest heat wave on
        record...but the temperature climbed to only 98 degrees on
        June 28th.
29-15 In 2000...the 29th marked the beginning of a near record hot
        streak for metro Denver.  The high temperatures...as recorded
        at Denver International Airport...exceeded the 90 degree mark
        for 17 consecutive days from June 29th through July 15th.
        The record of 24 consecutive 90 degree or above days was
        set from July 13th through August 5th...2008.
30-1  In 1873...heavy rainfall overnight...from the 30th to the 1st...
        totaled 1.42 inches. Mountain peaks to the southwest of the
        city were covered with fresh snow on the morning of the 1st.
1     In 1915...northeast winds sustained to 41 mph with gusts to
        50 mph occurred just before a thundershower in the evening.
        Rainfall was only 0.07 inch.
      In 1941...unusually heavy thunderstorm rains flooded
        basements and blocked traffic.  Water was curb high
        on many downtown streets.  The thunderstorm also pelted
        the city with hail of unknown size.  Rainfall in
        downtown Denver totaled 0.72 inch...but greater amounts
        likely occurred in other parts of the city.
      In 1960...a severe dust devil moving through an Adams County
        suburban area blew over a fireworks stand...injuring an 11-
        year-old boy customer and two women operators of the stand.
        The boy was found under the demolished stand 100 feet away.
      In 1961...hail as large as 1 1/4 inches in diameter was
        reported over east Denver.
      In 1967...golf ball size hail fell over portions of metro
        Denver.  Hail stones to 2 inches in diameter damaged roofs
        and broke windows in northeast Boulder.  Marble to golf ball
        size hail fell at the Boulder Airport.  A funnel cloud was
        sighted over the foothills near Boulder.  Hail stones of 1
        to 2 inches in diameter were measured at Jefferson County
        Airport near Broomfield.  Marble size hail fell in the
        vicinity of Arvada and Westminster.
      In 1982...severe thunderstorms dropped large hail in Denver...
        Boulder...Commerce City...Lakewood...Wheat Ridge...Golden...and
        Arvada.  Most locations reported hail size from 3/4 to 1 1/4
        inches in diameter.
      In 1990...the high temperature reached 102 degrees at
        Stapleton International Airport.
      In 1998...hail to 1 1/2 inches in diameter fell near Bennett.
      In 2001...the temperature climbed to a high of 101 degrees at
        Denver International Airport.
      In 2016...a severe thunderstorm produced large hail in Castle
        Rock...ranging in size from 1 to 2 inches in diameter. The
        hail pummeled neighborhoods as it smashed cars and
        shattered windows. The storm caused extensive damage to
        shutters...roofs...siding and fencing.
      In 2019...heavy rainfall produced minor flooding near Gold
        Hill. Severe thunderstorms produced large hail...from
        1 to 1 1/4 inches in diameter in Arapahoe and Weld counties.
      In 2021...a thunderstorm generated a peak wind gust to 58 mph
        near Bennett.
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.
1     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.

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