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Public Information Statement
National Weather Service Denver/Boulder CO
259 AM MDT FRI AUG 21 2026

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

19-30 In 1875...grasshoppers appeared in great numbers at 10:00 AM
        on the 19th and continued through the 30th.  Thousands
        landed on the ground.  The streets were literally covered
         with them.  Swarms of grasshoppers were seen on each day.
        All gardens in the city were devastated...and in the
        countryside the grasshoppers were very destructive to ripened
        grain.  On the 30th the grasshoppers were so numerous as to
        almost darken the sun.
21    In 1876...heavy thunderstorm rain and hail struck the city.
        Hail stones as large as partridge eggs accumulated to a
        depth of 1 1/2 feet over eastern portions of the city.
        The heavy rainfall flooded streets and gutters.  However...
        no significant damage was reported.  Rainfall totaled 0.85
        inch in central Denver.
      In 1903...a thunderstorm produced west winds sustained to
        42 mph with gusts to 48 mph.
      In 1957...heavy thunderstorm rainfall and hail over the Bear
        Creek basin flooded portions of State Highway 8 in and near
        Morrison.  There was also minor property damage in Morrison.
      In 1995...a 68-year-old woman was struck by lightning while
        standing near a tree in Brighton.
      In 2006...a severe thunderstorm produced 7/8 inch diameter
        hail in Franktown.
      In 2019...severe thunderstorms produced hail up to 1 inch
        in diameter in parts of Arapahoe...Denver and Jefferson
        counties. Heavy rain and flash flooding...close to 2
        inches in one hour...also accompanied the nearly stationary
        storms. In Denver...flash flooding caused several
        vehicles to be stranded at Martin Luther King Blvd and
        Dahlia Street. Highway 6 near Federal Blvd also flooded.
        Standing water up to 3 feet deep occurred in Park Hill.
        Lastly...water made its way into buildings north of
        Interstate 70.  At Denver International Airport...just
        a trace of rainfall was recorded.
      In 2022. a thunderstorm produced very heavy rainfaLL at
        Denver International Airport...where 1.14 inches of
        rainfall was observed.  In addition...the storm produced
        a peak wind gust to 38 mph from the south.

$$