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NOUS45 KBOU 300859
PNSBOU
COZ030>051-302300-
PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
259 AM MDT MON JUN 30 2025
..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 IN 1879...DENSE SMOKE FROM MOUNTAIN FOREST FIRES COVERED THE
CITY AND OBSCURED THE SUN AS IT SET BEHIND THE MOUNTAINS.
IN 1900...A THUNDERSTORM PRODUCED NORTHWEST WINDS TO 44 MPH
WITH GUSTS TO 58 MPH...BUT ONLY A TRACE OF RAIN.
IN 1917...NORTH WINDS WERE SUSTAINED TO 47 MPH WITH GUSTS TO
52 MPH.
IN 1942...A STRONG THUNDERSTORM PRODUCED HAIL AND HEAVY RAINFALL
IN SOUTH DENVER. LEAVES WERE STRIPPED FROM TREES AND HEAVY
RAIN CAUSED STREET FLOODING WHICH HALTED TRAFFIC. HAIL OF
UNKNOWN SIZE REACHED A DEPTH OF 9 INCHES ON THE GROUND.
IN 1965...FUNNEL CLOUDS WERE OBSERVED TO THE SOUTH OF STAPLETON
INTERNATIONAL AIRPORT AND IN JEFFERSON COUNTY...15 MILES
SOUTHWEST OF THE AIRPORT. LATER...A TORNADO TOUCHED DOWN
BRIEFLY 1 MILE EAST OF LITTLETON...CAUSING ONLY MINOR DAMAGE.
ANOTHER TORNADO WAS OBSERVED 12 MILES SOUTHWEST OF STAPLETON
INTERNATIONAL AIRPORT IN JEFFERSON COUNTY. HAIL TO 3/4 INCH
IN DIAMETER FELL IN THE BEAR VALLEY AREA...12 MILES SOUTH-
SOUTHWEST OF STAPLETON INTERNATIONAL AIRPORT. YET ANOTHER
TORNADO WAS SIGHTED 10 MILES NORTHWEST OF THE AIRPORT.
CLOUDBURSTS ACCOMPANIED BY HAIL BATTERED AREAS OF ARAPAHOE
AND ADAMS COUNTIES EAST OF DENVER...DAMAGING RIPENING GRAIN
FIELDS. AT LAFAYETTE...3.50 INCHES OF RAIN FELL IN 30
MINUTES...CAUSING SOME FLOODING.
IN 1982...NUMEROUS FUNNEL CLOUDS WERE OBSERVED OVER SOUTHWEST
METRO DENVER. ONLY ONE FUNNEL TOUCHED DOWN NEAR THE
INTERSECTION OF JEWELL AND KIPLING. THE TORNADO WAS ON THE
GROUND FOR ABOUT 5 MINUTES AND CAUSED NO DAMAGE EXCEPT FOR
UPROOTING SOME TREES. IN ADDITION...THUNDERSTORMS PRODUCED
HEAVY RAIN AND HAIL IN THE FOOTHILLS WEST OF DENVER. OVER
AN INCH OF RAIN FELL IN A SHORT TIME NEAR IDAHO SPRINGS...
CAUSING CLEAR CREEK TO OVERFLOW ITS BANKS AND FLOOD A FEW
LOW LYING AREAS OF THE TOWN. A FEW PEOPLE WERE EVACUATED...
AND WATER AND MUD ENTERED SEVERAL STORES. THE HEAVY RAIN
ALSO WASHED OUT SEVERAL ROADS. HAIL PILED UP TO A DEPTH OF
3 TO 4 INCHES NEAR IDAHO SPRINGS. HAIL TO 3/4 INCH WAS
REPORTED AT MANY PLACES ACROSS METRO DENVER INCLUDING
STAPLETON INTERNATIONAL AIRPORT. LIGHTNING STRUCK A
CHEMISTRY BUILDING ON THE UNIVERSITY OF COLORADO CAMPUS IN
BOULDER AND STARTED A SMALL FIRE. THUNDERSTORM WIND GUSTS
TO 60 MPH WERE REPORTED NEAR BRIGHTON.
IN 1984...HEAVY RAIN CAUSED SOME STREET AND BASEMENT FLOODING
IN LITTLETON. ONE LOCATION RECEIVED 1.56 INCHES OF RAIN IN
75 MINUTES.
IN 1987...A WEAK TORNADO NEAR WATKINS STAYED ON THE GROUND FOR
5 MINUTES.
IN 1990...A SMALL TWISTER TOUCHED DOWN IN AN OPEN FIELD JUST
NORTH OF THE ROCKY MOUNTAIN ARSENAL. NO DAMAGE WAS
REPORTED.
IN 1998...HAIL AS LARGE AS 1 INCH IN DIAMETER FELL NEAR
EVERGREEN.
IN 2005...A SEVERE THUNDERSTORM PRODUCED HAIL AS LARGE AS
3/4 INCH NEAR ROGGEN. THE HAIL DESTROYED A WHEAT FIELD.
IN 2006...THE TEMPERATURE REACHED A HIGH OF 98 DEGREES AT
DENVER INTERNATIONAL AIRPORT. THIS MARKED THE 19TH DAY
IN JUNE WITH A MAXIMUM TEMPERATURE OF 90 DEGREES OR MORE
SETTING A NEW ALL-TIME RECORD FOR THE MONTH.
IN 2011...VERY STRONG THUNDERSTORM WINDS WERE ALSO OBSERVED
ACROSS PORTIONS OF THE URBAN CORRIDOR. A PEAK WIND GUST TO
65 MPH WAS RECORDED...2 MILES NORTHEAST OF BOULDER WITH A
GUST TO 63 MPH AT FRONT RANGE AIRPORT AT WATKINS AND
7 MILES SOUTHEAST OF DENVER INTERNATIONAL AIRPORT. THE
PEAK WIND GUST MEASURED AT DENVER INTERNATIONAL AIRPORT
ITSELF WAS 45 MPH. A SEVERE THUNDERSTORM ALSO PRODUCED
ONE INCH IN DIAMETER HAIL 2 MILES SOUTH-SOUTHEAST OF
PARKER. IN ADDITION...A LIGHTNING STRIKE DESTROYED A HOME
IN NORTH DENVER.
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...EIGHT HIKERS WERE INJURED BY A NEARBY LIGHTNING
STRIKE AT THE DEVIL HEAD LOOKOUT...WEST OF PERRY PARK IN
DOUGLAS COUNTY. FIVE HIKERS WERE ABLE TO WALK OUT
UNASSISTED...WHILE TWO OTHER REQUIRED ASSISTANCE. MOST
COMPLAINED OF HAVING TINGLING SENSATIONS...WHILE TWO SUFFERED
FROM MINOR BURNS. THE EIGHTH VICTIM SUFFERED CRITICAL
INJURIES AND HAD TO BE CARRIED OUT BY STRETCHER AND TAKEN TO
A NEARBY HOSPITAL.
IN 2023...A TOTAL OF 5.35 INCHES OF RAIN FELL THROUGH THE
MONTH OF JUNE...ESTABLISHING THE ALL TIME RECORD FOR DENVER.
THE PREVIOUS RECORD WAS 4.96 INCHES SET 141 YEARS EARLIER IN
1882.
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.
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