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Public Information Statement
National Weather Service Denver/Boulder CO
259 AM MDT SAT JUN 1 2024

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

29-1  In 1894...from the 29th to the 1st of the month...heavy
        rain combined with snowmelt runoff caused widespread
        flooding over the South Platte River basin.
        Rainfall was heaviest in the foothills where 5 to 8
        inches were measured over the 4 days.  Heavy rainfall
        west of Boulder flooded mining towns and damaged mining
        properties.  In the canyons above Boulder...railroads
        and roads were washed out along with many bridges.  The
        floodwaters spread into central Boulder and covered a
        wide area from University Hill north to near Mapleton
        Hill to a maximum depth of 8 feet.  Many houses were
        swept away...and every bridge in Boulder was destroyed.
        A few people...trapped in their homes by the floodwaters...
        had to be rescued.  However...the gradual rise of the flood
        waters resulted in only one death.  Boulder Creek spread to
        a width of nearly one mile in the pasture land to the east
        of Boulder.  Extensive flooding on Left Hand Creek north
        of Boulder washed away railroad and wagon bridges.  The
        heavy cloudbursts caused flooding on Bear Creek...which
        washed away bridges...railroad tracks...and structures and
        destroyed the canyon roadway.  Morrison sustained the
        heaviest flood damage on Bear Creek.  In Denver...rainfall
        totaled only 1.50 inches on the 30th and 31st...but the
        heavy rainfall on upstream tributaries of the South Platte
        River caused the river to rise as much as 10 feet above the
        low water mark in the city...which caused some flooding of
        pasture land downstream to a depth of 6 feet near Brighton.
1     In 1875...a windstorm during the late afternoon and early
        evening produced sustained winds to 50 mph.
      In 1898...south winds were sustained to 41 mph with gusts
        to 46 mph.
      In 1917...a trace of unmelted snow fell in downtown Denver.
        Precipitation for the day totaled 0.08 inch...half of
        which was estimated to be from melted snow.
      In 1919...snowfall of 0.4 inch was measured in downtown
        Denver.  This was the greatest calendar day and 24-hour
        snowfall ever recorded during the month of June.
        Precipitation (rain and melted snow) totaled 0.15 inch.
        Two temperature records were set.  The low temperature
        of 32 degrees was a record minimum for the date.  The
        high temperature of only 40 degrees was a record low
        maximum for the date and the month.  North winds were
        sustained to 36 mph with gusts to 40 mph.
      In 1951...a trace of snow fell at Stapleton Airport.
      In 1961...hail as large as 1 1/2 inches in diameter fell
        in west Denver with hail to 1 1/4 inches reported in
        Derby.
      In 1965...a man struck by lightning in southeast Denver died
        shortly after being admitted to a hospital.  Lightning
        damaged power lines in east and southeast Denver.
      In 1980...strong thunderstorm winds blew in the windows of a
        mobile home in Northglenn.
      In 1990...a thunderstorm produced wind gusts to 63 mph in
        Boulder.  A small tornado touched down in a farmer`s field
        between the towns of Louisville and Lafayette.  Another
        tornado was spotted in an open field 3 miles west of
        Brighton.  A funnel cloud was sighted near Hudson.
        A microburst wind gust to 55 mph was recorded at Stapleton
        International Airport.  No damage was reported from any of
        these events.
      In 1991...severe thunderstorms producing large hail...damaging
        winds...funnel clouds...and heavy rain were widespread across
        metro Denver.  Funnel clouds were reported in Lakewood...
        Boulder...Arvada...and just east of the Rocky Mountain
        Arsenal.  Hail up to golf ball size fell in Lakewood...just
        west of Sedalia...in Littleton...Arvada...Englewood...and the
        City of Denver.  A mobile home park in Jefferson County
        reported hail to 3 feet deep.  Up to 1.00 inch of rain
        fell in 45 minutes near Boulder...causing Boulder Creek to
        flow out of its banks.  Rock and mud slides forced the
        closure of many roads in Boulder County.  Later in the
        afternoon thunderstorms produced rainfall amounts of 2 to
        3 inches over a couple of hours.  Clear Creek in Golden
        spilled over onto U.S. Highway 6.  Heavy rains washed away
        part of a bridge near Erie.  Water was up to 18 inches
        deep in Westminster.  Wind gusts to 58 mph were reported at
        Stapleton International Airport where 1/4 inch hail fell...
        and heavy thunderstorm rainfall totaled 0.82 inches...briefly
        reducing the visibility to 1 1/4 miles.  Estimates of total
        damage from these storms would exceed 7 million dollars.
      In 1994...hail up to 1 inch in diameter fell over south Denver
        and Littleton.
      In 1997...two short lived-tornadoes formed near Bennett...but
        did no reported damage.
      In 2002...strong winds from the outflow of dissipating showers
        developed to the east of Denver.  Near Strasburg...a spotter
        recorded a wind gust to 58 mph.
      In 2012...it was the hottest June in Denver since weather
        records began back in 1872. The average temperature for
        the month was 75.0 degrees which was 7.6 degrees above
        normal.  There were a total of seventeen 90 degree days in
        the month of June. The highlight of record setting month
        was a stretch of five consecutive 100 degree days from the
        22nd to the 26th. This was only the third time in Denver
        weather history in which this happened. Two of the high
        temperatures during the stretch peaked at 105 degrees...
        which set the all time record for the month of June and
        tied the all-time maximum temperature for Denver.
      In 2019...severe thunderstorms produced large hail from 1 to
        1 3/4 inch hail east of Centennial and over southeast
        Aurora.
1-2   In 2002...unusually very warm weather for so early in June
        resulted in two temperature records.  Maximum temperatures
        of 96 degrees on the 1st and 93 degrees on the 2nd were
        record highs for each date...respectively.
1-4   In 1977...unusually warm weather for this early in June
        resulted in 3 maximum temperature records being equaled
        at the time:  88 degrees on the 1st...90 degrees on the 2nd...
        and 93 degrees on the 4th.  Maximum of 91 degrees on the
        3rd was not a record.

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