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Public Information Statement
National Weather Service Denver/Boulder CO
259 AM MDT SUN MAY 12 2024

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

10-12 In 2011...from the 10th to the 12th...a spring snowstorm
        brought heavy snow to the Front Range Foothills and
        Palmer Divide. Storm totals included:  18 inches...4
        miles south-southeast of Pinecliffe; 16 inches in Coal
        Creek Canyon; 15 inches...4 miles west-southwest of
        Eldorado Springs; 13 inches at Gold Hill...12 inches...4
        miles west-southwest of Conifer and 4 miles northwest of
        Elizabeth; 11.5 inches...6 miles southwest of Evergreen and
        4 miles east-northeast of Nederland; 11 inches...3 miles
        east of Jamestown and 10.5 inches...3 miles east of
        Franktown and 3 miles south of Golden and 10 inches...10
        miles north of Elizabeth. At Denver International Airport...
        1 inch of snowfall was observed.
      In 2023...a slow moving storm system produced a period of
        moderate to heavy rainfall across the urban corridor...Palmer
        Divide and adjacent plains.  A 24-hr daily record of 2.92 inches
        occurred at Denver International Airport on the 11th...with a
        2-day total of 3.75 inches on the 11-12th...and 3-day total of
        4.40 inches from the 10-12th.  The prolonged period of rainfall
        resulted in flooding...flash flooding and washed out roadways...
        including Cherry Creek State Park and the National Wildlife
        Refuge at the Rocky Mountain Arsenal.  Three-day rainfall
        amounts south and southeast of Denver ranged from 4.00 to
        7.00 inches.  In the Front Range west of Denver...above 10
        thousand feet...heavy wet snowfall ranged from 1 to 2 feet.
        The 3-day event propelled Denver into 4th place for rainfall
        in month of May...with a total of 5.53 inches.
11-12 In 2014...from the 11th to the 12th...a strong storm system
        moved from southwest Colorado and produced heavy snow in
        and near the Front Range Foothills and metro Denver.  The
        snow was heaviest in the foothills where up to 2 1/2 feet
        of snow was observed. In the foothills...storm totals
        included: 30 inches near Pinecliffe; 29 inches...
        8 miles northeast of Four Corners; 28 inches near Pingree
        Park; 27 inches near Allenspark; 20.5 inches near Idaho
        Springs; 19.5 inches at Gold Hill; 19 inches near Genesee; 18
        inches near Blackhawk; 17 inches at Aspen Springs; 16.5 inches
        near Ward; 13.5 inches at Bergen Park; with 11 inches at
        Evergreen.  Along Urban Corridor and Palmer Divide...storm
        totals included: 10.5 inches at Eldorado Springs; 10 inches at
        Ken Caryl; 9 inches at Superior; 8 inches near Morrison; 7.5
        inches in Broomfield and Highlands Ranch; 7 inches in Denver...
        near Franktown...Golden...Lakewood and Highlands Ranch; 6
        inches...5 miles northeast of Westminster...7 miles south of
        Lyons and near Parker; with 5.5 inches at Aurora. At Denver
        International Airport...1.1 inches of snowfall was observed...
        along with 0.9 inches of water.
      In 2023...a slow moving storm system produced a period of
        moderate to heavy rainfall across the urban corridor...Palmer
        Divide and adjacent plains.  A 24-hr daily record of 2.92 inches
        occurred at Denver International Airport on the 11th...with a
        2-day total of 3.75 inches on the 11-12th.  The prolonged period
        of rainfall resulted in flooding...flash flooding and washed out
        roadways; including Cherry Creek State Park and the National
        Wildlife Refuge at the Rocky Mountain Arsenal.
12    In 1875...two forest fires on the eastern slope of the
        foothills were visible from the city.
      In 1904...north winds were sustained to 40 mph with gusts
        to 48 mph.
      In 1950...brilliant and complete primary and secondary
        rainbows arching across the sky were observed from
        Stapleton Airport.
      In 1951...a wind gust to 51 mph was recorded at Stapleton
        Airport.
      In 1984...winds gusted to 69 mph in Boulder.  Northwest winds
        gusted to 47 mph at Stapleton International Airport.
      In 1987...a small weak tornado touched down for about 2
        minutes in southeast Denver.  The twister hit a car
        dealership...blowing about a dozen windows out of cars and
        shattering four skylights on the building.  Some tin
        roofing was blown off a patio a block and a half away.  The
        tornado also downed a power pole.  Damage at the dealership
        was estimated at 10 thousand dollars.  A man was slightly
        injured by lightning in northwest Aurora.
      In 1995...several funnel clouds were sighted near Parker.
        One of the funnels produced a short-lived debris cloud
        on the ground in an open field.  No damage was reported.
      In 2015...a man suffered minor injuries when the tree he took
        shelter under was struck by lightning. He was jogging at
        City Park Golf Course when the incident occurred. The
        jogger was taken to the hospital for observation.
12-13 In 1907...from the 12th to the 13th...the temperature warmed to
        a high of 73 degrees on the 12th...before a cold front
        produced a thunderstorm...northeast winds sustained to 40
        mph...and rain changing to light snow overnight.  Snowfall
        totaled only 2 inches...but the high temperature on the 13th
        was only 39 degrees.
      In 1961...from the 12th to the 13th...a storm that covered
        metro Denver with rain and snow started as thunderstorms
        on the evening of the 12th.  Hail to 1 1/2 inches in
        diameter was reported 10 miles northwest of Stapleton
        Airport.  Rain continued overnight and changed to snow on
        the 13th.  Snowfall totaled 6.4 inches and precipitation
        (rain and melted snow) 1.96 inches at Stapleton Airport
        where north winds gusted to 39 mph.  The rain and heavy
        wet snow caused icing damage to utility lines.  Heavy
        snow occurred in the foothills.
      In 1982...from the 12th to the 13th...a major storm dumped
        1.50 to 3.50 inches of rain across northeast Colorado and
        deposited prodigious amounts of snow in the foothills. Coal
        Creek Canyon southwest of Boulder was buried under 46 inches
        of snow with 39 inches at Nederland.  The heavy wet snow
        downed many powerlines in the foothills.  In Thornton...the
        roof of a school was damaged by water from the heavy rain.
        At Stapleton International Airport...1.49 inches of rain
        were measured over the 2-day period.  The heavy rain ended
        a severe and prolonged drought.
      In 2004...from the 12th to the 13th...a winter storm produced
        heavy snow in excess of a foot in the foothills above 6
        thousand feet while heavy rain fell across the city.  The
        heaviest snow occurred in the high country of Boulder
        County. Storm total snowfall was 14.5 inches near Jamestown.
        Rainfall totaled 0.81 inch at Denver International Airport
        with 0.94 inch recorded at Denver Stapleton.  A trace of
        snow was recorded at both locations.  East winds gusted to
        24 mph at Denver International Airport on the 12th.

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