673  
NOUS45 KBOU 120045  
PNSBOU  
COZ030>051-122300-  
 
PUBLIC INFORMATION STATEMENT  
NATIONAL WEATHER SERVICE DENVER/BOULDER CO  
645 PM MDT SAT JUL 11 2026  
   
..THIS WEEK IN METRO DENVER WEATHER HISTORY  
 
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.  
6-23 IN 1901...FROM THE 6TH TO THE 23RD...A STREAK OF 18 CONSECUTIVE  
DAYS OF 90 DEGREES TIED FOR SECOND WITH ANOTHER STREAK SET  
IN THE SUMMER OF 1874. THE RECORD OF 24 CONSECUTIVE DAYS WAS  
ESTABLISHED IN THE SUMMER OF 2008.  
7-25 IN 1934...A STREAK OF 15 CONSECUTIVE DAYS OF 90 DEGREES...FROM THE  
7TH TO THE 25TH...RANKED 5TH ON THE LIST OF HOT STREAKS. THE  
RECORD OF 24 CONSECUTIVE DAYS WAS ESTABLISHED IN THE SUMMER OF  
2008.  
11-12 IN 1872...HEAVY RAIN...FROM 4:00 PM ON THE 11TH UNTIL 2:00 AM  
ON THE 12TH...CAUSED MUCH DAMAGE. RAINFALL TOTALED 1.76  
INCHES.  
12 IN 1881...DURING THE EARLY EVENING...A BRISK RAIN FELL FOR  
30 MINUTES FROM A NEARLY CLEAR SKY CONTAINING NOT ONE  
TENTH OF CLOUDS WITH THE SUN SHINING BRIGHTLY. RAINFALL  
WAS 0.16 INCH.  
IN 1885...THUNDERSTORMS PRODUCED WIDESPREAD LIGHTNING ACROSS  
THE CITY DURING THE EVENING. SEVERAL PEOPLE WERE INJURED  
WHEN THEIR HOMES WERE STRUCK BY LIGHTNING.  
IN 1954...THE HIGH TEMPERATURE REACHED 101 DEGREES AT STAPLETON  
AIRPORT.  
IN 1962...LIGHTNING STRUCK AND KILLED A DENVER MAN...WHILE HE  
WAS ASSISTING A CO-WORKER WITH HIS CAR.  
IN 1971...THE TEMPERATURE CLIMBED TO A HIGH OF 101 DEGREES AT  
STAPLETON INTERNATIONAL AIRPORT.  
IN 1974...HAIL TO 3/4 INCH IN DIAMETER FELL IN CASTLE ROCK.  
IN 1991...HAIL TO 2 INCHES IN DIAMETER FELL IN THORNTON WITH  
GOLF BALL SIZE HAIL IN BRIGHTON. DIME SIZE HAIL WAS  
RECORDED IN THE CITY OF DENVER. VERY HEAVY RAIN CAUSED  
FLOODING ACROSS METRO DENVER. WATER WAS UP TO 2 FEET DEEP  
IN PARTS OF GOLDEN WHERE ONE FOOT OF WATER WAS REPORTED IN  
THE LOT OF A MOBILE HOME PARK. FLOOD WATER WASHED AWAY PART  
OF A PARKING LOT AT THE COLORADO SCHOOL OF MINES IN GOLDEN.  
HEAVY RAIN CAUSED A ROCK SLIDE AND FLOODING ALONG I-70 IN  
THE FOOTHILLS JUST WEST OF DENVER. FLOOD WATERS WERE A FOOT  
DEEP AT THE INTERSECTION OF I-70 AND I-25 JUST NORTH OF  
DOWNTOWN DENVER. A FUNNEL CLOUD WAS SIGHTED JUST EAST OF  
THE ROCKY MOUNTAIN ARSENAL.  
IN 1996...VERY HEAVY RAINFALL FROM A FAST MOVING THUNDERSTORM  
DUMPED 2 TO 3 INCHES OF RAIN WITHIN AN HOUR OVER SOUTHERN  
JEFFERSON COUNTY. TWO PEOPLE WERE KILLED NEAR THE TOWN  
OF BUFFALO CREEK WHEN A 20-FOOT WALL OF WATER FLOODED  
THE AREA. UTILITY POLES AND TREES WERE UPROOTED; CARS...  
PROPANE TANKS...AND BRIDGES WERE DESTROYED IN THE FLOOD'S  
PATH. ENTIRE BUILDINGS WERE MOVED FROM THEIR FOUNDATIONS  
AND HEAVILY DAMAGED BY THE FLOODWATERS. THE FIRST FATALITY  
OCCURRED ALONG STATE HIGHWAY 126 WHEN THE DRIVER OF A  
PICK-UP TRUCK WAS WASHED OFF THE ROAD BY THE DEADLY WALL OF  
WATER. THE SECOND DEATH OCCURRED FARTHER UPSTREAM WHEN A  
MAN IN A 5TH-WHEEL TRAILER WAS WASHED AWAY. THIS WAS THE  
SECOND DISASTER TO STRIKE THE AREA IN THE LAST COUPLE OF  
MONTHS. THE COMMUNITY WAS ALREADY RECOVERING FROM A  
WILDFIRE WHICH BURNED ABOUT 12 THOUSAND ACRES OF FOREST LAND  
IN LATE MAY. WITH THE FOREST BURNED BY FIRE...VERY LITTLE  
VEGETATION WAS AVAILABLE TO SLOW THE STORM'S RUNOFF...WHICH  
RESULTED IN THE FLASH FLOOD. POWER...WATER...AND SEWER  
SERVICE WERE HEAVILY DAMAGED IN THE FLOOD AND...IN SOME  
CASES...BEYOND REPAIR. THE COST OF REPAIRING THE ROADS AND  
WATER SYSTEM IN THE AREA WAS ESTIMATED AT AROUND A HALF  
MILLION DOLLARS. ELSEWHERE ACROSS METRO DENVER...SEVERE  
THUNDERSTORMS PRODUCED HAIL...DAMAGING WINDS...AND SMALL  
TORNADOES. WEAK TORNADOES (F0) WERE REPORTED IN BROOMFIELD...  
3 MILES EAST OF ENGLEWOOD...AND IN DACONO. NO DAMAGE WAS  
REPORTED...EXCEPT A TRAMPOLINE WAS BLOWN INTO A WINDOW AND  
SEVERAL TREES WERE DOWNED IN BROOMFIELD. THUNDERSTORM  
WIND GUSTS ESTIMATED AS HIGH AS 60 MPH BLEW A FENCE DOWN  
IN LOUISVILLE WHERE WINDS ALSO TOPPLED A TREE NEAR A HOUSE.  
THE HOUSE RECEIVED ONLY MINOR DAMAGE. LARGE HAIL...STRONG  
WINDS AND HEAVY RAIN CAUSED SUBSTANTIAL PROPERTY DAMAGE  
IN PORTIONS OF SOUTHEASTERN BOULDER AND NORTHERN JEFFERSON  
COUNTIES. DAMAGE ESTIMATES IN THE BROOMFIELD AREA ALONE  
WERE ABOUT 1 MILLION DOLLARS. WINDS GUSTED TO 81 MPH IN  
BROOMFIELD. LARGE HAIL...3/4 TO 1 1/2 INCHES IN DIAMETER  
FELL IN EVERGREEN...LAKEWOOD...ENGLEWOOD...BROOMFIELD...NEAR  
MORRISON...NORTHEAST OF BOULDER...AND JUST EAST OF DENVER  
INTERNATIONAL AIRPORT.  
IN 2000...HEAVY RAIN FELL ACROSS A PORTION OF THE HI MEADOW  
FIRE BURN AREA NEAR BUFFALO CREEK...CAUSING LOCALIZED  
FLOODING. ABOUT 3/4 INCH OF RAIN FELL IN 30 MINUTES OVER  
MILLER GULCH. SOME CULVERTS BECOME PLUGGED BY DEBRIS FROM  
THE FIRE. AS A RESULT...SMALL SECTIONS OF A U.S. FOREST  
SERVICE ROAD ALONG MILLER CREEK WERE WASHED OUT. LIGHTNING  
STRUCK A HOME IN CASTLE ROCK...CAUSING EXTENSIVE DAMAGE TO  
THE ROOF...ATTIC...AND SECOND FLOOR.  
IN 2011...SEVERE THUNDERSTORMS DEVELOPED OVER PARTS OF ADAMS  
AND DENVER COUNTIES. AT DENVER INTERNATIONAL AIRPORT...A  
SEVERE THUNDERSTORM PRODUCED A PEAK WIND GUST TO 66 MPH...  
WITH ANOTHER GUST TO 59 MPH MEASURED IN DENVER. IN  
COMMERCE CITY...THE INTENSE WINDS BLEW DOWN A LARGE TREE.  
13 IN 1902...WEST WINDS WERE SUSTAINED TO 42 MPH WITH GUSTS TO  
48 MPH.  
IN 1910...AN APPARENT DRY MICROBURST PRODUCED NORTHEAST WINDS  
SUSTAINED TO 41 MPH.  
IN 1961...HAIL AS LARGE AS 1 INCH IN DIAMETER WAS REPORTED  
NEAR COMMERCE CITY.  
IN 1982...A TORNADO TOUCHED DOWN BRIEFLY SOUTH OF PARKER. NO  
DAMAGE WAS REPORTED.  
IN 1985...THUNDERSTORMS DRENCHED THE HIGHLANDS RANCH AREA OF  
NORTHERN DOUGLAS COUNTY WITH 1.50 INCHES OF RAIN IN JUST  
30 MINUTES. HALF AN INCH OF RAIN FELL IN 15 MINUTES IN  
LITTLETON.  
IN 1986...A LIGHTNING BOLT STRUCK A CHURCH STEEPLE IN  
LITTLETON...TOPPLING IT TO THE GROUND.  
IN 1989...THUNDERSTORM WINDS BLEW DOWN TREES AND BENT A METAL  
BASKETBALL FIXTURE JUST NORTH OF CASTLE ROCK IN THE SURREY  
RIDGE AREA.  
IN 1993...1 INCH DIAMETER HAIL WAS MEASURED IN LAKEWOOD.  
IN 1995...LIGHTNING STRUCK AND INJURED AN ASSISTANT COACH  
DURING A BASEBALL GAME AT HIGHLANDS RANCH SOUTH OF DENVER.  
IN 1996...3/4 INCH DIAMETER HAIL FELL IN LOCHBUIE WITH 1 1/2  
INCH HAIL MEASURED IN BRIGHTON. THUNDERSTORM WINDS GUSTED  
TO 69 MPH AT BENNETT. THE STRONG WINDS WERE RESPONSIBLE  
FOR FLIPPING THREE SEMI-TRAILER TRUCKS ONTO THEIR SIDES  
ALONG I-70...3 MILES EAST OF BENNETT. A FEW CARS WERE ALSO  
OVERTURNED.  
IN 2001...HEAVY THUNDERSTORM RAIN CAUSED FLASH FLOODING OVER  
SOUTH METRO DENVER. THREE INCHES OF RAIN REPORTEDLY FELL  
NEAR THE GREENWOOD VILLAGE POLICE DEPARTMENT IN THE SPAN  
OF 15 MINUTES. THE HEAVY RAIN CAUSED TOLL GATE CREEK TO  
OVERFLOW...FLOODING LOW LYING AREAS ALONG PARKER ROAD.  
HEAVY RAINFALL ALSO CAUSED LOCAL FLOODING ALONG STREETS  
NEAR THE DENVER TECHNOLOGY CENTER. A SEVERE THUNDERSTORM  
DUMPED HAIL TO 1 3/4 INCHES IN DIAMETER NEAR CASTLE ROCK.  
IN 2003...MAXIMUM TEMPERATURE OF 100 DEGREES WAS A RECORD HIGH  
FOR THE DATE.  
IN 2009...SEVERE THUNDERSTORMS PRODUCED WIND GUSTS TO 70 MPH  
NEAR PARKER AND STRASBURG. AT DENVER INTERNATIONAL  
AIRPORT...WEST-NORTHWEST WINDS GUSTED TO 40 MPH.  
IN 2011...SEVERE THUNDERSTORMS PRODUCED EXTENSIVE DAMAGE AS  
THEY MOVED ACROSS THE URBAN CORRIDOR. AT DENVER  
INTERNATIONAL AIRPORT ALONE...LARGE HAIL UP TO 1 3/4 INCHES  
IN DIAMETER...VERY HEAVY RAIN AND WIND GUSTS TO 59 MPH CAUSED  
SUBSTANTIAL DAMAGE TO 40 PLANES AND STRANDED APPROXIMATELY  
1500 PASSENGERS OVERNIGHT. FRONTIER AND UNITED AIRLINES  
WERE HARDEST HIT AS DOZENS OF PLANES WERE TAKEN OUT OF  
SERVICE FOR REPAIRS; FORCING THE CANCELLATION OF AT LEAST  
220 FLIGHTS OVER THE NEXT SEVERAL DAYS. DAMAGE TO THE  
AIRCRAFTS ALONE WAS NEARLY FIVE MILLION DOLLARS. IN  
ADDITION...83 CARS IN AIRPORT PARKING LOTS WERE DAMAGED...  
ALONG WITH SOME POLICE CARS AND MAINTENANCE VEHICLES. IN  
WATKINS...TWO PEOPLE SUFFERED MINOR INJURIES AND 35 TO 40  
HOMES WERE DAMAGED. AS MANY AS TWO HUNDRED RESIDENTS IN A  
MOBILE HOME PARK WERE LEFT HOMELESS BY THE STORM...FORCING  
THE RED CROSS TO OPEN A SHELTER AT BENNETT HIGH SCHOOL.  
THE TRAILER PARK CONTAINED 52 MOBILE HOMES...14 RECREATIONAL  
VEHICLES...3 HOUSES AND A COMMERCIAL BUILDING. HAILSTONES  
THE SIZE OF SOFTBALLS CRATERED THE NORTH SIDES OF THE  
MOBILE HOMES. SOME FARMERS IN THE AREA SAID THEY LOST AS  
MUCH AS 85 PERCENT OF THEIR TOTAL WHEAT CROP. POWER LINES  
WERE ALSO DAMAGED WHICH AFFECTED ABOUT 1200 CUSTOMERS IN  
WATKINS. THE STRONG WINDS ALSO FLIPPED OVER A TRACTOR-  
TRAILER RIG ON I-70 NEAR WATKINS ROAD. INSURANCE CLAIMS FOR  
THE WATKINS...BENNETT AND BRIGHTON AREAS WAS ESTIMATED TO BE  
SEVENTEEN MILLION DOLLARS. THE TOTAL DAMAGE ESTIMATE ACROSS  
THE ENTIRE URBAN CORRIDOR...WAS NEAR ONE HUNDRED SIXTY FIVE  
MILLION DOLLARS...AND INCLUDED 17200 AUTOMOBILE CLAIMS AND  
12600 HOMEOWNER CLAIMS. IN ADDITION...THUNDERSTORMS  
PRODUCING VERY HEAVY RAINFALL...CAUSED FLASH FLOODING IN THE  
FOUR MILE CANYON BURN SCAR WEST OF BOULDER. THREE HOMES  
REPORTEDLY HAD WATER UP TO THE WINDOWS WITH WATER FLOWING  
INTO STRUCTURES AT FOURMILE CANYON ROAD AND GOLD RUN ROAD.  
THE HEAVY RAIN CAUSED A 4-FT SURGE ALONG FOURMILE CREEK  
THROUGH ORODELL AND INTO THE ENTRY OF BOULDER CREEK.  
SEVERAL ROADS WERE AFFECTED WHICH RESTRICTED ACCESS TO THE  
AREA. ROADS WERE CLOSED DUE TO WATER AND DEBRIS. PRIVATE  
BRIDGES AND DRIVES WERE WASHED OUT AND SEVERAL RESIDENTS  
WERE STRANDED AND LATER RESCUED. NUMEROUS CARS WERE DAMAGED  
IN DEBRIS FLOWS AND SEVERAL STRUCTURES SUFFERED FLOOD  
DAMAGE BUT WERE NOT DESTROYED.  
IN 2019...A SEVERE THUNDERSTORM PRODUCED HAIL UP TO 1.0 INCH  
IN DIAMETER IN BROOMFIELD...WITH 7/8 INCH SIZE HAIL REPORTED  
IN ARAPAHOE COUNTY NEAR BUCKLEY AFB.  
13-5 IN 2008...A STREAK OF 24 CONSECUTIVE DAYS OF 90 DEGREES...FROM  
JULY 13TH TO AUGUST 5TH...SHATTERED THE PREVIOUS RECORD OF 18  
CONSECUTIVE DAYS ESTABLISHED IN 1901 AND 1874. IRONICALLY...  
NO NEW SINGLE DAY RECORD HIGH TEMPERATURES WERE SET IN THE  
MONTH OF JULY. IN AUGUST HOWEVER...A RECORD OF 104 DEGREES  
WAS SET ON THE 1ST...AND ANOTHER RECORD OF 103 DEGREES WAS  
SET ON THE 2ND. IN ADDITION...A RECORD LOW MIN OF 70 DEGREES  
WAS SET ON AUGUST 2ND.  
14 IN 1878...THE TEMPERATURE REACHED A HIGH OF 100 DEGREES IN  
DOWNTOWN DENVER.  
IN 1906...A THUNDERSTORM PRODUCED NORTH WINDS SUSTAINED TO  
52 MPH AND 0.53 INCH OF RAIN IN 10 MINUTES.  
IN 1912...A HEAVY THUNDERSTORM CLOUDBURST IN THE LATE AFTERNOON  
COMBINED WITH A SIMILAR STORM TO THE SOUTH OF THE CITY TO  
PRODUCE WIDESPREAD FLOODING ON CHERRY CREEK IN DOWNTOWN  
DENVER...WHICH RESULTED IN TWO DEATHS AND SEVERAL INJURIES.  
THE FLOODING WAS THE WORST SINCE 1864 AND COVERED AROUND 3  
SQUARE MILES OF LOWER DOWNTOWN. BRIDGES ALONG CHERRY CREEK  
WERE WASHED OUT AND WATER LAPPED AT THE FLOOR OF THE BROADWAY  
BRIDGE OVER THE SOUTH PLATTE RIVER...CAUSING AUTHORITIES TO  
DECLARE IT UNSAFE EXCEPT FOR PEDESTRIANS. BY NIGHTFALL...  
UNION DEPOT WAS UNDER 2 TO 3 FEET OF WATER...AND RAILROAD AND  
STREET CAR TRAFFIC WAS STALLED. THOSE FORCED FROM THEIR  
HOMES BY THE SURGING FLOOD WATERS TOOK REFUGE IN THE DENVER  
AUDITORIUM. THE FLOOD WATERS CAUSED GREAT DAMAGE TO THE  
SEWERAGE SYSTEM...PARKWAYS...BRIDGES AND RESIDENCES AND  
COMMERCIAL WAREHOUSES NEAR CHERRY CREEK IN THE WHOLESALE  
DISTRICT. FLOOD DAMAGE WAS ESTIMATED AT SEVERAL MILLION  
DOLLARS. HEAVY THUNDERSTORM RAINFALL OF 2.00 INCHES...OF  
WHICH NEARLY 1.75 INCH FELL IN 30 MINUTES IN CENTRAL DENVER...  
WAS ACCOMPANIED BY SEVERE THUNDERSTORM WINDS SUSTAINED TO 55  
MPH WITH GUSTS AS HIGH AS 74 MPH.  
IN 1933...THUNDERSTORM RAINFALL WAS ONLY 0.01 INCH...BUT  
NORTHWEST WINDS SUSTAINED TO 37 MPH WITH GUSTS TO 47 MPH  
PRODUCED A DUST STORM FOR ABOUT 10 MINUTES DURING THE  
LATE AFTERNOON.  
IN 1967...HEAVY RAIN FLOODED AREAS OF NORTH AND WEST METRO  
DENVER...AND HIGH WATER CLOSED STREET INTERSECTIONS IN THE  
CITY. CROPS WERE DAMAGED...AND 200 CHICKENS DROWNED BY  
FLOODING NORTHWEST OF DENVER WHERE FARM BUILDINGS AND  
IRRIGATION FACILITIES WERE ALSO DAMAGED.  
IN 1969...A THUNDERSTORM WIND GUST TO 51 MPH WAS RECORDED AT  
STAPLETON INTERNATIONAL AIRPORT.  
IN 1975...HEAVY RAINS CAUSED LOCALLY HEAVY FLASH FLOODING ALONG  
NIVER CREEK SOUTH OF THORNTON AND IN OTHER PARTS OF NORTH  
METRO DENVER. OVER 40 THOUSAND DOLLARS IN DAMAGE TO PUBLIC  
PROPERTY WAS REPORTED...AND NUMEROUS HOMES AND YARDS WERE  
DAMAGED.  
IN 1986...THUNDERSTORM WINDS BLEW DOWN A POWER LINE IN WEST-  
CENTRAL JEFFERSON COUNTY. THE STORM...AS IT MOVED INTO  
DENVER...SNAPPED TREE LIMBS AND DAMAGED A FENCE NEAR  
WASHINGTON PARK. WIND GUSTS IN THE AREA WERE ESTIMATED AT  
80 TO 85 MPH.  
IN 1990...THUNDERSTORM WIND GUSTS TO 58 MPH WERE RECORDED AT  
BUCKLEY FIELD IN AURORA. NO DAMAGE WAS REPORTED. WINDS  
GUSTED TO 44 MPH AT STAPLETON INTERNATIONAL AIRPORT.  
IN 1993...A SEVERE THUNDERSTORM MOVED ACROSS SOUTHERN SECTIONS  
OF METRO DENVER. DIME SIZE HAIL FELL IN LAKEWOOD...AND HAIL  
UP TO ONE INCH DIAMETER WAS MEASURED AT CHERRY CREEK  
RESERVOIR. LATER IN THE AFTERNOON...HAIL TO ONE INCH  
DIAMETER FELL IN GOLDEN AND ARVADA.  
IN 1994...HAIL TO 1 1/4 INCHES IN DIAMETER FELL NORTH OF  
BENNETT.  
IN 1998...DRY MICROBURST WINDS ESTIMATED TO 70 MPH SNAPPED  
TREE BRANCHES UP TO 4 INCHES IN DIAMETER IN BRIGHTON  
WHERE SOME ROAD SIGNS WERE TWISTED AND BLOWN DOWN. AT  
DENVER INTERNATIONAL AIRPORT...DRY MICROBURST WINDS GUSTED  
TO 61 MPH.  
IN 1995...THUNDERSTORM WINDS GUSTED TO 62 MPH NEAR STRASBURG.  
IN 2001...A SEVERE THUNDERSTORM DUMPED HAIL TO 3/4 INCH IN  
DIAMETER IN THE FOOTHILLS ABOUT 10 MILES NORTHWEST OF  
GOLDEN.  
IN 2011...SEVERE THUNDERSTORMS IN THE DENVER METROPOLITAN  
AREA PRODUCED VERY HEAVY RAIN...LARGE HAIL AND DAMAGING  
WINDS. THE STRONG WINDS TOPPLED A FEW TREES AND THE HEAVY  
RAIN CAUSED STREET FLOODING AND MINOR FLASH FLOODING.  
SEVERAL CARS WERE STRANDED AT THE INTERSECTION OF SANTA FE  
DRIVE AND OXFORD...AND NEAR BROADWAY AND U.S. HIGHWAY 285.  
A 16-YR OLD TEENAGER WAS SERIOUSLY INJURED WHEN HE TRIED  
TO RETRIEVE A BALL ALONG THE BANKS OF WEST TOLL GATE CREEK.  
HE WAS PULLED FROM THE SWOLLEN CREEK AND DIED SEVERAL DAYS  
LATER. HAIL UP TO 1 INCH IN DIAMETER WAS REPORTED  
AROUND THE AREA. THE THUNDERSTORMS ALSO PRODUCED FREQUENT  
LIGHTNING. ONE STRIKE SPARKED A FIRE AT ASPEN ACADEMY...A  
PRIVATE SCHOOL IN GREENWOOD VILLAGE. MOST OF THE DAMAGE  
WAS CONFINED TO THE ROOF AND ATTIC. IN ENGLEWOOD...A  
40-FT TREE WAS BLOWN INTO A HOUSE AND KNOCKED DOWN SOME  
POWER LINES. AT DENVER INTERNATIONAL AIRPORT...A SEVERE  
THUNDERSTORM PRODUCED SUSTAINED WINDS OF 47 MPH AND A  
PEAK WIND GUST TO 68 MPH.  
IN 2019...A DENVER MAN WAS KILLED AND HIS WIFE INJURED AFTER  
HE WAS STRUCK BY LIGHTNING WHEN THEY WERE HIKING NEAR THE  
BEAR PEAK WEST RIDGE TRAIL. THE MAN WAS LIKELY HIT FROM A  
DIRECT LIGHTNING STRIKE TO HIS UPPER BODY. HIS WIFE WAS  
NOT DIRECTLY HIT...BUT INJURED BY THE ELECTRICAL CURRENT  
FROM THE STRIKE THAT HIT HER HUSBAND.  
14-15 IN 1985...FROM THE 14TH INTO THE 15TH...THUNDERSTORMS DUMPED  
HEAVY RAIN AND HAIL AT NUMEROUS LOCATIONS ALONG THE FRONT  
RANGE FROM DENVER NORTH. SOME OF THE HEAVIEST RAIN FELL  
IN NORTHERN AND WESTERN SUBURBS OF DENVER. UP TO 2.6  
INCHES OF RAIN DRENCHED ARVADA...AND THORNTON WAS SOAKED  
WITH 2 INCHES IN 45 MINUTES. AT LEAST 5 HOMES IN ARVADA  
SUFFERED EXTENSIVE DAMAGE FROM WATER AND MUD...AND MANY  
STREETS AND BASEMENTS WERE FLOODED. IN SOUTHERN JEFFERSON  
COUNTY...11 HOMES WERE STRUCK BY LIGHTNING.  
15 IN 1879...A TERRIFIC HAILSTORM OCCURRED IN THE VICINITY OF  
OF BUFFALO STATION ON THE SOUTH PARK RAILROAD IN THE  
SOUTH PLATTE RIVER CANYON ABOUT 39 MILES SOUTH OF DENVER.  
STONES AS LARGE AS HEN'S EGGS FELL THICK AND FAST AND BROKE  
NEARLY EVERY PANE OF GLASS IN THE WINDOWS OF THE BUILDING.  
A "WATERSPOUT" OR CLOUDBURST CAUSED MUCH LOSS OF PROPERTY  
FROM FLASH FLOODING ON A NEARBY GULCH. THE TORRENT OF  
WATER CAUSED A DEAFENING ROAR AS IT UPROOTED TREES AND  
CARRIED HUGE BOULDERS AND OTHER DEBRIS. IT STRUCK THE  
HOUSE AND SAWMILL SIMULTANEOUSLY AND CARRIED THEM AWAY  
LIKE STRAWS...LEAVING LITTLE BEHIND. THE WATER CONTINUED  
TO RUSH DOWN THE GULCH FOR SEVERAL HOURS. SERIOUS DAMAGE  
WAS DONE TO THE SOUTH PARK RAILROAD. THE TRACK AND  
ROADBED WERE DESTROYED FOR SEVERAL MILES. AT ABOUT THE  
SAME TIME...HEAVY RAINS IN THE VICINITY OF THE HEADWATERS  
OF CHERRY CREEK PRODUCED A RAPID RISE IN THE CREEK...WHICH  
DROWNED A FEW HEAD OF CATTLE AND WASHED AWAY TWO FOOTBRIDGES  
AND SOME FENCES. ONLY 0.10 INCH OF RAINFALL WAS RECORDED IN  
DENVER.  
IN 1896...A THUNDESTORM PRODUCED SUSTAINED SOUTHWEST WINDS TO  
40 MPH WITH GUSTS TO 46 MPH.  
IN 1902...THE TEMPERATURE REACHED A HIGH OF 100 DEGREES IN  
DOWNTOWN DENVER...WHICH WAS A RECORD MAXIMUM FOR THE DATE.  
IN 1929...A THUNDERSTORM DID CONSIDERABLE DAMAGE TO PROPERTY  
IN THE EASTERN PORTION OF THE CITY. HEAVY HAIL RANGING  
IN SIZE FROM 1/4 TO 3/4 INCH IN DIAMETER...SEVERE LIGHTNING...  
AND HIGH WINDS ACCOMPANIED THE HEAVY RAIN. BASEMENTS WERE  
FLOODED...AND STREETS WERE IMPASSABLE IN PLACES FOR SEVERAL  
HOURS DUE TO THE HEAVY RAINFALL. LIGHTNING DAMAGED SEVERAL  
TELEPHONE POLES. HAIL DID EXTENSIVE DAMAGE TO GARDENS AND  
FLOWERS. THE HAIL WAS UP TO A FOOT DEEP IN PLACES. THERE  
WAS NO ESTIMATE OF DAMAGE FROM THE STORM. A THUNDERSTORM  
PRODUCED ONLY A TRACE OF RAIN AND EAST WINDS TO 24 MPH IN  
DOWNTOWN DENVER.  
IN 1959...THUNDERSTORM RAIN TOTALED 0.41 INCH IN 8 MINUTES  
AND WINDS GUSTED TO AN ESTIMATED 50 MPH NEAR DOWNTOWN  
AURORA WHERE HALF INCH DIAMETER HAIL WAS ALSO REPORTED.  
AFTER THE STORM MOVED TO THE EAST...COMPLETE DOUBLE RAINBOWS  
WERE OBSERVED FROM THE WEATHER BUREAU OFFICE AT STAPLETON  
AIRPORT.  
IN 1962...HAIL PELTED THE AREA IN ADAMS COUNTY AROUND HENDERSON  
AND BRIGHTON...CAUSING EXTENSIVE DAMAGE TO CORN...GRAIN...  
BEETS...AND ROW CROPS. CROP DAMAGE WAS ESTIMATED AT 250  
THOUSAND DOLLARS.  
IN 1963...A MAN RECEIVED SEVERE BURNS WHEN STRUCK BY LIGHTNING  
WHILE PAINTING A BUILDING IN SOUTH DENVER.  
IN 1965...A STATE PATROLMAN SIGHTED A TORNADO NEAR BENNETT. IT  
TOUCHED DOWN OVER OPEN GROUND...BUT CAUSED NO DAMAGE.  
IN 1967...HEAVY RAINS FLOODED STREETS AND UNDERPASSES IN SOUTH  
DENVER. HEAVY RAIN AND MINOR WIND DAMAGE WERE REPORTED IN  
WHEAT RIDGE...AURORA...ENGLEWOOD...AND LITTLETON. BASEMENTS  
WERE FLOODED AND POWER DISRUPTED. THE CLOUDS AND RAIN  
RESULTED IN A HIGH TEMPERATURE OF ONLY 72 DEGREES...WHICH  
WAS A RECORD LOW MAXIMUM FOR THE DATE.  
IN 1974...A SEVERE LIGHTNING STORM DAMAGED SEVERAL HOMES AND  
CAUSED A NUMBER OF POWER OUTAGES IN BOTH DENVER AND WESTERN  
ARAPAHOE COUNTIES.  
IN 1975...LIGHTNING KILLED A GIRL WEST OF BOULDER.  
IN 1982...WINDS GUSTED TO 60 MPH AT STAPLETON INTERNATIONAL  
AIRPORT...AND STRONG WINDS BLEW DOWN WALLS AT A CONSTRUCTION  
SITE IN AURORA WHERE A NEARBY TREE WAS UPROOTED.  
IN 1985...0.79 INCH OF RAIN FELL IN 30 MINUTES AT CASTLE  
ROCK. MUCH OF THE TOWN LOST POWER WHEN LIGHTNING STRUCK  
THE TOWN'S TRANSFORMER.  
IN 1992...A MAN WAS STRUCK BY LIGHTNING WHILE HORSEBACK RIDING  
NEAR CASTLE ROCK. TWO PEOPLE WERE STRUCK BY LIGHTNING NEAR  
HIGHLANDS RANCH IN SOUTH METRO DENVER. A MAN WAS STRUCK BY  
LIGHTNING WHILE RIDING IN THE BACK OF A PICK-UP TRUCK IN  
FRANKTOWN. ALL RECEIVED MINOR INJURIES. STRONG  
THUNDERSTORMS MOVED THROUGH EAST METRO DENVER...PRODUCING  
LARGE HAIL AND FLASH FLOODING. HAIL UP TO 1 1/4 INCHES IN  
DIAMETER FELL NEAR BUCKLEY AIR NATIONAL GUARD BASE.  
RAINFALL OF 1 TO 3 INCHES FELL IN AURORA IN LESS THAN AN  
HOUR...LEAVING WATER UP TO 18 INCHES DEEP IN SOME AREAS.  
THUNDERSTORM RAINFALL WAS MEASURED AT 0.97 INCH AT  
STAPLETON INTERNATIONAL AIRPORT...WHERE 3/8TH INCH DIAMETER  
HAIL FELL AND SOUTH WINDS GUSTED TO 44 MPH.  
IN 1993...DIME SIZE HAIL FELL IN GOLDEN. NATIONAL WEATHER  
SERVICE OBSERVERS AT STAPLETON INTERNATIONAL AIRPORT  
SIGHTED A SMALL ROPE-LIKE FUNNEL OVERHEAD FOR ABOUT 3  
MINUTES BEFORE IT DISSIPATED.  
IN 1994...A SMALL...SHORT-LIVED TORNADO CAUSED DAMAGE TO A HOUSE  
UNDER CONSTRUCTION IN PARKER.  
IN 1995...THUNDERSTORM WINDS OF UNKNOWN STRENGTH DOWNED TREES  
AND BRANCHES...DAMAGING A PORCH AND NEARBY CARS IN DENVER.  
IN 1998...HAIL TO 7/8 INCH IN DIAMETER FELL NEAR KEENESBURG.  
IN 2000...THIS DATE MARKED THE END OF A NEAR RECORD HOT STREAK  
FOR METRO DENVER. THE HIGH TEMPERATURE AT DENVER  
INTERNATIONAL AIRPORT EQUALED OR EXCEEDED THE 90-DEGREE  
MARK FOR 17 CONSECUTIVE DAYS...FROM JUNE 29TH. THIS WAS  
ONE DAY SHORT OF EQUALING THE ALL TIME RECORD. THE  
RECORD OF 18 CONSECUTIVE DAYS WAS SET IN TWO DIFFERENT  
YEARS...JULY 1ST-18TH...1874 AND JULY 6TH-23RD...1901.  
IN 2005...SEVERE THUNDERSTORMS PRODUCED LARGE HAIL OVER  
SOUTHEAST METRO DENVER. HAIL AS LARGE AS 1.75 INCHES  
IN DIAMETER FELL IN SOUTHWEST AURORA ALONG WITH 7/8 INCH  
HAIL IN CENTENNIAL. HAIL TO 3/4 INCH IN DIAMETER WAS  
MEASURED NEAR CENTENNIAL AIRPORT AND NEAR WATKINS.  
IN 2015...A SEVERE THUNDERSTORM PRODUCED A PEAK WIND GUST TO  
60 MPH FROM THE NORTHWEST AT DENVER INTERNATIONAL AIRPORT.  
IN ADDITION...0.06 INCHES OF RAINFALL WAS ALSO OBSERVED.  
IN 2016...LARGE HAIL RANGING IN SIZE FROM 1 TO 2 INCHES IN  
DIAMETER STRUCK AURORA...CASTLE ROCK...CENTENNIAL...GREENWOOD  
VILLAGE AND SOUTHEAST DENVER. THE HAIL SHATTERED  
WINDSHIELDS AND CAUSED EXTENSIVE DAMAGE TO VEHICLES.  
15-16 IN 2006...A BRIEF MID JULY HOT SPELL RESULTED IN TWO 100  
PLUS DEGREE HIGH TEMPERATURES AND TWO DAILY MAXIMUM  
TEMPERATURE RECORDS. THE HIGH TEMPERATURE CLIMBED TO  
101 DEGREES ON THE 15TH AND 103 DEGREES ON THE 16TH  
AT DENVER INTERNATIONAL AIRPORT.  
16 IN 1911...THUNDERSTORM WINDS WERE SUSTAINED TO 44 MPH FROM THE  
NORTHWEST.  
IN 1959...A THUNDERSTORM PRODUCED 3/8 INCH DIAMETER HAIL AND  
A WIND GUST TO 60 MPH AT STAPLETON AIRPORT.  
IN 1972...TWO TORNADOES WERE SIGHTED BY THE PUBLIC TO THE  
SOUTHEAST OF AURORA. NO DAMAGE WAS REPORTED.  
IN 1978...A THUNDERSTORM WIND GUST TO 52 MPH WAS RECORDED AT  
STAPLETON INTERNATIONAL AIRPORT.  
IN 1980...A SEVERE THUNDERSTORM RIPPED THROUGH METRO DENVER...  
PRODUCING TORRENTIAL RAIN...LARGE HAIL...AND STRONG WINDS. IN  
AURORA...WINDS GUSTED TO 65 MPH WITH HAIL UP TO 1 1/2 INCHES  
IN DIAMETER AND HALF AN INCH OF RAIN IN JUST 10 MINUTES.  
STAPLETON INTERNATIONAL AIRPORT WAS CLOSED FOR AN HOUR.  
LARGE HAIL ALSO FELL IN SOUTHEAST DENVER...LAKEWOOD...PARKER...  
AND CASTLE ROCK. UP TO 1 1/2 INCHES OF RAIN FELL IN JUST 40  
MINUTES. HEAVY RAINS IN WHEAT RIDGE FLOODED A SHOPPING  
CENTER...BREAKING WINDOWS AND DOORS...WHILE CAUSING 100  
THOUSAND DOLLARS IN DAMAGE. SOME ROOFS AND WINDOWS WERE  
DAMAGED THROUGHOUT METRO DENVER. AT STAPLETON INTERNATIONAL  
AIRPORT WHERE WEST WINDS GUSTED TO 49 MPH...1/4 INCH HAIL  
AND 0.77 INCH OF RAIN FELL.  
IN 1983...SEVERE THUNDERSTORMS DUMPED LARGE HAIL OVER MUCH OF  
METRO DENVER. HAIL TO 3/4 INCH IN DIAMETER FELL IN LITTLETON  
AND NORTHGLENN...WITH 3/4 TO 1 INCH HAIL IN ARVADA...1 TO 1 1/2  
INCH HAIL IN EXTREME NORTHWEST DENVER...1 3/4 INCH HAIL IN  
LAKEWOOD...1 1/2 INCH HAIL IN SOUTH ARVADA AND JUST NORTHEAST  
OF AURORA...AND 1 5/8 INCH HAIL ON GREEN MOUNTAIN.  
IN 1994...SPOTTERS REPORTED A BRIEF TORNADO TOUCHDOWN IN AN  
OPEN FIELD JUST NORTH OF FORT LUPTON. NO DAMAGE OR INJURIES  
WERE REPORTED.  
IN 2000...VERY MOIST AND UNSTABLE WEATHER CONDITIONS...ALONG  
WITH LOW LEVEL UPSLOPE FLOW DURING THE LATE AFTERNOON AND  
EVENING...COMBINED TO PRODUCE HEAVY THUNDERSTORM RAINFALL...  
WHICH CAUSED URBAN AND SMALL STREAM FLOODING ACROSS METRO  
DENVER. RAINFALL AMOUNTS GENERALLY RANGED FROM 1 TO 3 INCHES  
WITH THE HEAVIEST RAINFALL OCCURRING DURING THE EVENING HOURS.  
TWO MILES EAST OF WHITE RANCH IN NORTHERN JEFFERSON COUNTY...  
AN AUTOMATED RAIN GAGE MEASURED 3.86 INCHES OF RAIN. SINCE  
THE RAIN FELL IN A RELATIVELY OPEN AREA...NO FLOOD DAMAGE  
WAS REPORTED. HOWEVER...IN GREENWOOD VILLAGE NEAR THE  
INTERSECTION OF PEORIA AND BELLEVIEW...THE STREETS WERE  
CLOSED FOR SEVERAL HOURS WITH AS MUCH AS 2 FEET OF STANDING  
WATER COVERING THE ROADWAYS. TWO CAMPERS NEAR MT. EVANS  
WERE INJURED BY LIGHTNING AND STRANDED OVERNIGHT BY THE  
INCLEMENT WEATHER. BOTH RECEIVED MINOR INJURIES.  
IN 2003...THE HIGH TEMPERATURE OF 101 DEGREES WAS A RECORD  
MAXIMUM TEMPERATURE FOR THE DATE.  
IN 2004...LOCALLY HEAVY RAINFALL OF UNKNOWN AMOUNT CAUSED  
PARTS OF THE VIRGINIA CANYON ROAD NEAR IDAHO SPRINGS TO  
WASH OUT. THE ROAD HAD TO BE CLOSED TEMPORARILY.  
IN 2005...THE TEMPERATURE CLIMBED TO A HIGH OF 102 DEGREES  
AT DENVER INTERNATIONAL AIRPORT. THIS WAS A NEW RECORD  
MAXIMUM TEMPERATURE FOR THE DATE AT THE TIME.  
16-18 IN 1997...AN EXTENDED HOT SPELL RESULTED IN 3 TEMPERATURE  
RECORDS BEING SET. THE MAXIMUM TEMPERATURE REACHED 98  
DEGREES ON EACH OF THE DAYS...SETTING RECORDS ON THE 16TH  
AND 18TH. THE LOW TEMPERATURE OF 71 DEGREES ON THE 17TH  
WAS A RECORD HIGH MINIMUM FOR THE DATE. THE HIGH  
TEMPERATURE REACHED 100 DEGREES ON THE 17TH AT THE SITE  
OF THE FORMER STAPLETON INTERNATIONAL AIRPORT.  
17 IN 1872...THE U.S. ARMY SIGNAL SERVICE WEATHER OBSERVER  
RECORDED SNOWFALL DURING THE EARLY MORNING HOURS IN THE  
HAND WRITTEN DAILY WEATHER JOURNAL: "RAIN COMMENCED AT  
1:30 A.M. CHANGING ABOUT 3 A.M. TO SNOW & IN ABOUT HALF  
AN HOUR TO RAIN AGAIN; IT CONTINUED UNTIL 6 A.M." THIS  
IS THE ONLY RECORDED OCCURRENCE OF SNOWFALL IN DENVER IN  
JULY...BUT THIS REPORT IS NOT INCLUDED IN THE "OFFICIAL"  
STATION SNOWFALL RECORDS...WHICH DID NOT BEGIN IN DENVER  
UNTIL JANUARY 1...1882. THE LOW TEMPERATURE ON THIS  
MORNING WAS 45 DEGREES...WHICH IS SUFFICIENTLY COLD FOR  
THE OCCURRENCE OF LIGHT STRATIFORM SNOWFALL.  
IN 1918...A THUNDERSTORM PRODUCED HAIL TO AN INCH IN DEPTH  
ON THE GROUND. THE STONES VARIED IN SIZE FROM A SMALL  
CHERRY STONE TO NEARLY 1/2 INCH IN DIAMETER. NOT MUCH  
PERMANENT DAMAGE WAS DONE TO CROPS. PRECIPITATION  
TOTALED 0.40 INCH...AND NORTHEAST WINDS WERE SUSTAINED  
TO 25 MPH WITH GUSTS TO 28 MPH.  
IN 1971...THE TEMPERATURE REACHED A HIGH OF 101 DEGREES AT  
STAPLETON INTERNATIONAL AIRPORT.  
IN 1983...3/4 INCH DIAMETER HAIL FELL AT LAFAYETTE...WHILE  
GOLF BALL SIZE HAIL PELTED BRIGHTON AND NORTHGLENN WHERE  
FUNNEL CLOUDS WERE ALSO SIGHTED.  
IN 1986...1 1/2 INCHES OF RAIN FELL IN AN HOUR AND 15 MINUTES  
IN SOUTHEASTERN AURORA. THUNDERSTORM RAINFALL TOTALED  
0.89 INCHES AT STAPLETON INTERNATIONAL AIRPORT.  
IN 1987...A SMALL TORNADO WAS SIGHTED NEAR WATKINS...IN THE  
VICINITY OF FRONT RANGE AIRPORT.  
IN 1997...LIGHTNING IGNITED AN OIL WELL TANK HOLDING 10  
THOUSAND GALLONS OF OIL...16 MILES NORTHWEST OF BENNETT.  
ABOUT 200 ACRES OF GRASSLAND BURNED BEFORE THE FIRE COULD  
BE EXTINGUISHED. A DRY MICROBURST PRODUCED A WIND GUST TO  
52 MPH AT DENVER INTERNATIONAL AIRPORT.  
IN 2000...AN ESTIMATED 2 INCHES OF RAIN FELL IN LESS THAN AN  
HOUR...CAUSING TWO SECONDARY ROADS IN BUCK AND MILLER GULCHES  
IN THE HI MEADOWS FIRE BURN AREA TO WASH OUT. WATER  
ALSO COVERED JEFFERSON COUNTY ROAD 68 WHICH CONNECTS TO  
BAILEY. HOMEOWNERS IN PINE VALLEY ESTATES ATTEMPTED TO  
DIVERT SOME OF THE RUNOFF BY PILING STACKS OF HAY ON THE  
HILLSIDE ABOVE THEIR HOMES. TORRENTIAL RAINFALL...UP TO  
3.50 INCHES AN HOUR...CAUSED FLASH FLOODING ALONG WHISKEY  
GULCH NEAR ELIZABETH. SEVERAL ROADS WERE WASHED OUT AND  
BASEMENTS FLOODED DURING THE STORM. ALONG COUNTY ROAD 13...  
ABOUT 6 MILES NORTH-NORTHWEST OF ELIZABETH...RUSHING WATER  
WASHED AWAY A 15-FOOT SECTION OF THE ROAD. THE FLOODWATERS  
FORCED DEBRIS AND MUD INTO FOUR HUGE CULVERTS...SENDING WATER  
OVER THE ROAD. AT DENVER INTERNATIONAL AIRPORT...AN UNITED  
AIRLINES GROUND CREW WORKER WAS STRUCK BY LIGHTNING AS SHE  
WAS LOADING A BOEING 747 JUMBO JET. THE WOMAN WAS INJURED  
WHEN LIGHTNING EITHER HIT THE JET OR THE LOADING EQUIPMENT  
THAT SHE WAS WORKING NEAR. THE 25-YEAR-OLD WOMAN RECEIVED  
ONLY MINOR INJURIES.  
IN 2006...OUTFLOW FROM SEVERE THUNDERSTORMS TO THE SOUTHEAST  
OF METRO DENVER PRODUCED SOUTHEAST SUSTAINED WINDS TO 35  
MPH WITH GUSTS AS HIGH AS 52 MPH AT DENVER INTERNATIONAL  
AIRPORT DURING THE LATE EVENING.  
IN 2011...A DELUGE OF HEAVY RAIN OCCURRED IN AND AROUND  
NEDERLAND WHEN THE STORM DUMPED NEARLY 2 INCHES OF RAIN IN  
30 MINUTES. THE HEAVY RAINFALL WASHED OUT HILLSIDES AND  
DIRT ROADS. IN NEDERLAND...A CULVERT BECAME BLOCKED WITH  
DEBRIS AND FORCED THE WATER TO SPREAD INTO A NEARBY  
BOOKSTORE. THE RAINFALL ALSO DAMAGED SEVERAL RESIDENTIAL  
ROADS IN THE SUNNYSIDE SUBDIVISION AND NAVAJO ROAD BECAME  
IMPASSABLE. SEVERAL HOMES SUFFERED FLOOD DAMAGE AS THE  
RUNOFF FROM A NEARBY BEAVER CREEK JUMPED ITS BANKS AND  
FLOODED GARAGES...LIVING ROOMS AND BEDROOMS OF NEARBY  
HOUSES.  
IN 2016...A SEVERE THUNDERSTORM PRODUCED HAIL UP TO 1 INCH  
IN DIAMETER NEAR BUCKLEY AIR FORCE BASE.  
18 IN 1874...THE TEMPERATURE CLIMBED TO 90 DEGREES OR MORE FOR THE  
18TH CONSECUTIVE DAY...SETTING A RECORD. THE RECORD WAS  
EQUALED FROM JULY 6TH THROUGH THE 23RD IN 1901.  
IN 1902...A THUNDERSTORM PRODUCED NORTHWEST WINDS SUSTAINED TO  
45 MPH WITH GUSTS TO 48 MPH ALONG WITH RAIN AND HAIL.  
TOTAL PRECIPITATION WAS 0.53 INCH.  
IN 1911...A SHOWER PRODUCED NORTH WINDS SUSTAINED TO 44 MPH.  
IN 1958...1 1/2 INCH DIAMETER HAIL FELL 9 MILES WEST-SOUTHWEST  
OF STAPLETON AIRPORT.  
IN 1981...A THUNDERSTORM BOMBED EVERGREEN WITH ABOUT 2 INCHES  
OF RAIN IN 45 MINUTES. A HEAVY HAILSTORM LEFT 5 TO 7 INCHES  
OF HAIL ON THE GROUND IN SOME PLACES AND STOPPED THE COLORADO  
OPEN GOLF TOURNAMENT AT HIWAN.  
IN 1985...OVER 2 INCHES OF RAIN DOUSED THE SOUTHWEST SUBURBS  
OF DENVER. STREET FLOODING OCCURRED IN THE MONTBELLO AREA  
OF NORTHEAST DENVER.  
IN 1992...NICKEL SIZE HAIL FELL ACROSS CENTRAL DOUGLAS COUNTY  
NEAR CASTLE ROCK AND SEDALIA. ONE INCH DIAMETER HAIL FELL  
IN CASTLE ROCK.  
IN 1993...THUNDERSTORM WINDS GUSTED TO 60 MPH AT STRASBURG  
EAST OF DENVER.  
IN 2004...HEAVY THUNDERSTORM RAINFALL CAUSED FLOODING OVER  
PARTS OF THE VIRGINIA CANYON ROAD NEAR IDAHO SPRINGS.  
SEVERAL SECTIONS OF THE ROADWAY WERE WASHED OUT. THE  
ROAD WAS CLOSED TEMPORARILY FOR REPAIRS.  
18-19 IN 2003...FROM THE 18TH INTO THE 19TH...HEAVY RAIN PRODUCING  
THUNDERSTORMS CAUSED FLASH FLOODING ACROSS SOUTHERN METRO  
DENVER. AUTOMATED RAIN GAGES MEASURED 2 TO 3 INCHES OF  
RAIN IN LESS THAN AN HOUR. THE HEAVY RAINFALL CAUSED MANY  
INTERSECTIONS AND UNDERPASSES TO FLOOD...STRANDING MOTORISTS.  
SECTIONS OF I-25 AND I-225 WERE CLOSED DUE TO THE HIGH WATER.  
18-2 IN 1987...FROM JULY 18TH TO AUGUST 2ND...A STREAK OF 16  
CONSECUTIVE DAYS OF 90 DEGREES RANKED 4TH ON THE LIST OF HOT  
STREAKS. THE RECORD OF 24 CONSECUTIVE DAYS WAS ESTABLISHED  
IN THE SUMMER OF 2008.  
 
 
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