{"id":1638,"date":"2009-06-07T05:23:09","date_gmt":"2009-06-07T12:23:09","guid":{"rendered":"http:\/\/www.thorntonweather.com\/blog\/?p=1638"},"modified":"2009-06-08T05:24:28","modified_gmt":"2009-06-08T12:24:28","slug":"june-7-to-june-13-this-week-in-denver-weather-history","status":"publish","type":"post","link":"https:\/\/www.thorntonweather.com\/blog\/thornton-weather\/june-7-to-june-13-this-week-in-denver-weather-history\/","title":{"rendered":"June 7 to June 13 – This week in Denver weather history"},"content":{"rendered":"
\"June<\/a>
June 7 to June 13 - This week in Denver weather history<\/figcaption><\/figure>\n

An extremely eventful week in weather history showing just how varied conditions can be.\u00a0 We of course see typical spring weather like tornadoes and hail but also a touch of snow and this week also marks the anniversary of the start of the Hayman Fire.<\/p>\n

2-7\u00a0\u00a0<\/p>\n

In 1921…heavy rainfall for nearly a week…on top of streams already swollen by mountain snowmelt…produced widespread flooding over the South Platte River basin…including the tributaries through the canyons to the west and southwest of Denver.\u00a0 Heavy rainfall over the 6-day period totaled 3.36 inches in Boulder…4.98 inches in Morrison…4.27 inches in Castle Rock…and 2.94 inches in the city of Denver. Rainfall amounts in the foothills were estimated between 3 and 6 inches.\u00a0 The narrow-gage tracks of the Colorado and southern railroad were destroyed in the Platte Canyon.\u00a0 From the mouth of the canyon through the city to near Brighton… The river spread from 1\/2 to nearly 1 1\/2 miles wide… Flooding farm and pasture land and destroying or damaging many bridges.\u00a0 In the city…many businesses along with as many as 500 homes were inundated…forcing their evacuation. Bridges were swept away.\u00a0 The high waters flooded the rail yards and stock yards in lower downtown…closing three adjacent packing houses.\u00a0 The heavy rains also caused flooding on Boulder creek in Boulder on the 6th.
\n6-7\u00a0\u00a0 in 2004…a brief hot spell produced 3 temperature records. High temperatures of 95 degrees on the 6th and 98 degrees on the 7th were record maximum temperatures for the dates. Low temperature of 68 degrees on the 7th was a record high minimum for the date.
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\nIn 2007…an unusually strong storm system brought very strong winds to the Front Range foothills and urban corridor. Peak gusts included:\u00a0 92 mph at Boulder…85 mph…2 miles southwest of Boulder…83 mph…10 miles south of Boulder and 55 mph at Denver International Airport.\u00a0 High winds forced the closure of Mt. Evans Road and Trail Ridge Road.\u00a0 Several trees were uprooted across the urban corridor.\u00a0 In Aurora… The driver of a car was injured when some building material blew off the Fitzsimmons complex.\u00a0 The debris landed on the car and knocked the driver unconcious.\u00a0 The wind forced the cancellation of 60 flights at Denver International Airport. Xcel reported outages in Boulder…Denver…Lakewood and Longmont.<\/p>\n

7\u00a0\u00a0\u00a0\u00a0<\/p>\n

In 1904…a thunderstorm produced south winds to 40 mph with gusts to 50 mph…but only a trace of rain.
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\nIn 1942…heavy thunderstorm rainfall in south Denver caused flooding of shops…stalled motorists…and halted tramway service temporarily.\u00a0 Lightning damaged houses…but there was no loss of life.\u00a0 Precipitation totaled 0.53 inch in downtown Denver.
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\nIn 1951…a 24×65 foot roof of a cow barn was lifted off the building and blown to the ground by a “twister” near Fort Lupton.
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\nIn 1961…small hail and heavy rain damaged property and crops in southwest metro Denver…including the southwest section of the city…Lakewood…and Littleton.\u00a0 Precipitation totaled 1.20 inch…11 miles southwest of Stapleton Airport. Complete primary and secondary rainbows were sighted by national weather service observers at Stapleton Airport.
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\nIn 1968…severe thunderstorms moving to the northeast through sections of Denver caused local flooding of streets and damage to trees and gardens from hail 1\/2 to 1 3\/4 inches in diameter.\u00a0 One man was killed and 2 were injured at the Wellshire Golf Course when lightning struck a tree under which they had taken shelter.\u00a0 At another golf course… A man was mortally injured by lightning.\u00a0 Marble to golf ball size hail fell over downtown Denver.\u00a0 Hail to 3\/4 inch in diameter was measured in Westminster.
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\nIn 1975…hail up to 3\/4 inch diameter fell in Boulder.
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\nIn 1978…a man standing under a tree on a golf course in Denver was struck in the arm by lightning.\u00a0\u00a0 Wind gusts to 60 mph and golf ball size hail pelted west and south Denver.
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\nIn 1986…7\/8 inch hail was measured in Lafayette.
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\nIn 1990…a thin…rope-shaped tornado touched down east of the intersection of State Highway 2 and 96th avenue just north of the rocky mountain arsenal.\u00a0 No damage was reported.
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\nIn 1992…a thunderstorm wind gust to 60 mph was recorded in Boulder.\u00a0 A funnel cloud was sighted by a highway patrol officer just northwest of Stapleton International Airport where thunderstorm winds gusted to 51 mph.\u00a0 Spotters and state patrol officers reported funnel clouds in the northwestern part of metro Denver…near Golden…and 7 miles northwest of Stapleton International Airport.
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\nIn 1993…non-convective high winds pummeled the Front Range foothills during the late morning and afternoon.\u00a0 Speeds of 60 to 80 mph were common.\u00a0 The winds caused several power outages as well as uprooting trees.\u00a0 In Lafayette…a 4-year- old boy was slightly injured while standing on the roots of a large tree which was toppled by the winds.\u00a0 The boy fell 10 feet to the ground and was bruised and scraped.\u00a0 A tree fell onto a parked car in Boulder…causing about 35 hundred dollars in damage.\u00a0 West wind gusts to 41 mph were recorded at Stapleton International Airport where a thunderstorm produced 1\/8 inch hail at daybreak.
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\nIn 1995…severe thunderstorms produced large hail across west and north metro Denver from Golden to Westminster and Fort Lupton.\u00a0 Hail ranged in size from 3\/4 to 2 inches in diameter.\u00a0 The largest hail fell in Fort Lupton.\u00a0 A weak tornado produced a brief dust and debris cloud in a corn field 3 miles northeast of Hudson.
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\nIn 1997…two plumbers were injured…one critically…when lightning struck a pipe on which they were working in an apartment building under construction in Denver.\u00a0 The bolt apparently hit one man in the hand…passed through his chest…and struck the other worker.\u00a0 The critically injured man…died a few days later.\u00a0 Lightning also injured a man…while he was talking on a telephone in ward.\u00a0 The bolt passed through the phone line burning his ear.
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\nIn 2001…hail as large as 7\/8 inch in diameter fell in Westminster.<\/p>\n

7-9\u00a0\u00a0<\/p>\n

In 1979…rain…at times with thunder on the 7th…fell almost continuously through the morning of the 9th.\u00a0 Rainfall totaled 2.28 inches at Stapleton International Airport over the 3 days.\u00a0 High temperature of only 49 degrees on the 8th was a record low maximum for the date.<\/p>\n

8\u00a0\u00a0\u00a0\u00a0<\/p>\n

In 1873…lightning struck and killed one man and damaged several houses.\u00a0 The thunderstorms produced heavy rain in the city…which caused a great deal of water damage. At 2:40 pm heavy rain began and by 4:00 pm 1.40 inches of rain had fallen.\u00a0 Two buildings under construction…with a projected cost of 100 thousand dollars…were badly damaged. The stone foundation and some of the brick walls were carried away by the storm waters.\u00a0 Many basements were flooded…which damaged goods stored there.\u00a0 Rainfall totaled 1.71 inches.
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\nIn 1964…lightning struck a building in Boulder…starting a fire and burning two workmen.
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\nIn 1968…a severe thunderstorm flooded streets…and hail- damaged trees and gardens…including flowers at a large commercial nursery in Boulder.
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\nIn 1969…severe hail damaged property…trees…and gardens… And heavy rain flooded streets and underpasses throughout metro Denver.\u00a0 The heaviest amounts of rain fell in south Denver and Englewood where unofficial totals of 5 to 6 inches were reported.\u00a0 Hail accumulated to 3 or 4 inches on the level and 2 to 3 feet deep in drifts.\u00a0 Mud…debris…and hail carried by the heavy runoff clogged drains and increased the amount of flooding.\u00a0 About 40 cars and a large truck were inundated at an underpass on an interstate highway…and several more were inundated or buried in mud in other areas.\u00a0 A large number of basements were flooded. Streets and highways were heavily damaged in some areas. Rainfall totaled 1.66 inches at Stapleton International Airport.
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\nIn 1974…a late spring storm dumped 1.79 inches of rain over metro Denver…causing local flooding.\u00a0 Strong gusty winds accompanied the storm…downing some power and telephone lines.\u00a0 Northwest winds gusted to 56 mph at Stapleton International Airport where a trace of snow fell. Measurable snowfall occurred at mid-day over Aurora and suburban areas to the south of Denver.\u00a0 A number of people were temporarily stranded in the mountains west of Denver where heavy snow fell.\u00a0 Low temperature of 37 degrees equaled the record minimum for the date.\u00a0 High temperature of 50 degrees was a record low maximum for the date.
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\nIn 1986…strong thunderstorm winds blew down a garage wall in Littleton and caused minor roof damage to several homes. Boats were overturned and damaged at a sporting goods store nearby.\u00a0 As the storm moved northeast it produced a small tornado…which touched down in extreme southeast Denver and moved northeast into Aurora.\u00a0 The twister did most of its estimated one million dollars damage shortly after touching down in an apartment complex and a shopping center.\u00a0 Two apartments were completely unroofed; wooden chimney facings were demolished and metal pipes were twisted.\u00a0 Many trees up to 25 feet high in the complex were uprooted. Doors were ripped off their hinges…and several parked cars were damaged.\u00a0 In the shopping center…a wall of a building was stripped of its brick facing…and many windows were broken.\u00a0 The twister picked up an aluminum rowboat…carried it 250 feet over some apartments…and deposited it in a vacant storefront.\u00a0 Around 200 cars were damaged in the shopping center.\u00a0 Benches bolted to the pavement were knocked over.\u00a0 Six people suffered minor injuries caused by flying debris.\u00a0 After hitting the shopping center and apartment complex…the tornado moved northeast into a residential area where it toppled some trees and damaged several fences.\u00a0 The same storm later produced 3 separate small tornadoes 5 miles north of Watkins.
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\nIn 1987…torrential rain produced extensive flooding across metro Denver.\u00a0 I-25 was closed for a time through central Denver…and a trailer park in Lakewood was partially evacuated due to high water.\u00a0 Several streets in Boulder were closed due to flooding.\u00a0 There was extensive basement flooding and water damage in Lakewood and southeast Denver. Lightning hit a power plant in Denver that supplied electricity to storm drain pumps which exacerbated street flooding in some areas.\u00a0 Rainfall from the thunderstorms totaled 1 1\/2 to 2 inches at many locations in Lakewood central and northeast Denver.\u00a0 The heaviest amount of reported rain was in Lakewood where 2 1\/4 inches fell in just 2 hours.\u00a0 At Stapleton International Airport…1.62 inches of rain fell in an hour.\u00a0 Rainfall totaled 1.76 inches for the day.
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\nIn 1988…a tornado touched down 15 miles northwest of Bennett and stayed on the ground for 15 minutes.\u00a0 The twister was observed by national weather service personnel at Stapleton International Airport.\u00a0\u00a0 No damage was reported.
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\nIn 1989…a small tornado hit a neighborhood in southeast Aurora.\u00a0 The twister hit a dozen homes…blowing out windows…knocking down fences…and partially unroofing one house.\u00a0 About a half dozen trees were felled.\u00a0 A basketball pole was severely bent.\u00a0 The tornado was on the ground for about 2 minutes.\u00a0 Total damage was estimated at 50 thousand dollars.\u00a0 Lightning also struck a home in Parker…causing 25 hundred dollars damage.
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\nIn 1992…very heavy thunderstorm rains drenched southwestern Weld and eastern Boulder counties.\u00a0 Measured rainfalls of over 2 inches an hour caused St. Vrain Creek to rise 2 feet out of its banks.\u00a0 Boulder creek was also out of its banks along U.S. Highway 287.\u00a0 I-25 flooded with 3 to 5 feet of water along a 9-mile stretch from the Erie exit to the Frederick exit.\u00a0 The highway was closed for over 6 hours while snowplow drivers and farmers with tractors rescued stranded motorists.\u00a0 Water rose into homes along south Boulder road in Lafayette.\u00a0 Several small County roads were washed out along the Boulder County\/Weld County line. An off-duty national weather service employee measured 3\/4 inch hail in Thornton.\u00a0 Several locations north of Denver had small hail up to 6 inches deep.\u00a0 A funnel cloud was spotted 18 miles northeast of Stapleton International Airport.
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\nIn 1998…severe thunderstorms dropped large hail across metro Denver.\u00a0 Hail as large as 1 3\/4 inches in diameter fell near columbine in Jefferson County.\u00a0 One inch diameter hail fell in Aurora and Littleton with 7\/8 inch hail in Arvada and 3\/4 inch hail at centennial airport… Near Greenwood Village…and in Parker.
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\nIn 2004…heavy rain and large hail caused flooding and flash flooding across northeast Jefferson County.\u00a0 In Golden… Heavy rains triggered a small mudslide on U.S. Highway 6 near the intersection of Colorado highway 119.\u00a0 Automated rain gages in the area registered 2 to 3 inches of rainfall in one hour.\u00a0 Near the Colorado mills mall…numerous streets were inundated with 1 to 3 feet of water and hail…which stranded several vehicles…including a fire engine.\u00a0 About 30 basements were flooded in Golden and Lakewood.\u00a0 Many windows in both homes and cars were shattered by the large hail.\u00a0 Hail as large as 1.5 inches in diameter was measured in and near Golden with hail to nearly an inch in diameter a few miles north of Evergreen.
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\nIn 2007…the low temperature in Denver bottomed out at 31 degrees…which established a new record minimum for the date.\u00a0 It also became the latest date of the last freeze in Denver.<\/p>\n

9\u00a0\u00a0\u00a0\u00a0<\/p>\n

In 1900…an apparent cold front produced north winds to 42 mph with gusts to 47 mph.
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\nIn 1923…heavy rainfall totaled 2.18 inches in downtown Denver…where northwest winds were sustained to 27 mph. Heavy rain also fell in Boulder…causing flooding on Boulder and south Boulder creeks.
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\nIn 1939…post-frontal sustained northwest winds to 35 mph produced some blowing dust…which reduced the visibility to one mile at times during the afternoon.\u00a0 Dusty conditions prevailed into the early evening.\u00a0 The airport station reported a maximum wind of 56 mph.\u00a0 A few minor injuries and some damage resulted.\u00a0 A few trees were uprooted…some fruit was blown from trees…and a section of power lines was blown down.
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\nIn 1959…dry thunderstorm winds…estimated to near 70 mph… Toppled a 40-foot-high poplar tree…which was 4 to 5 inches in diameter…near Cherry Creek dam.\u00a0 The Colorado state patrol reported a possible tornado 1 mile south of the dam.
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\nIn 1960…strong gusty winds tore the roofs from 2 patios in Aurora.\u00a0 One of the roofs was blown over a house and landed on a car damaging its top.\u00a0 A house trailer was also overturned.\u00a0 Other minor damage was reported to roofs… Windows…and trees in Aurora.\u00a0 A thunderstorm wind gust to 43 mph was recorded at Stapleton Airport.
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\nIn 1963…golf ball size hail fell at Cheery Creek Reservoir.
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\nIn 1967…a small tornado damaged trees and a dwelling in south Denver.\u00a0 The storm touched down at the intersection of 1st avenue and Harrison Street and moved northeast to the intersection of 3rd avenue and Albion Street. Damage included 3 small roofs removed…15-20 large trees uprooted…one car overturned and thrown against a house… Plus other minor damage.\u00a0 A funnel cloud reported at the same time 10 miles north of Denver possibly touched ground. Later…funnel clouds were reported 12 miles south-southeast of Stapleton International Airport…10 miles southwest…and 5 miles north.\u00a0 A tornado was sighted 3 1\/2 miles east of Stapleton International Airport by weather bureau personnel for a duration of 5 minutes.\u00a0 Heavy rain and some hail fell over much of the area.
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\nIn 1974…the start of the shortest seasonal snow free period on record…94 days…occurred with the last snow of the season…a trace…on the 8th.\u00a0 The first snow of the next season occurred on September 11th when a trace of snow fell at Stapleton International Airport.\u00a0 A funnel cloud was observed just east of Aurora and a small funnel was sighted just northeast of Stapleton International Airport.
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\nIn 1985…a thunderstorm wind gust to 62 mph was reported at Golden gate canyon in the foothills west of Denver.
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\nIn 1986…a thunderstorm…which dumped heavy rain and caused some street flooding across north metro Denver…produced a small tornado 5 miles east of Brighton.\u00a0 No damage was reported.
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\nIn 1987…strong thunderstorm wind gusts in Conifer destroyed a porch on a house; the wind gust apparently picked up the porch and dropped it on a man…killing him.\u00a0 The wind also damaged the roof of the house and a nearby barn.\u00a0 The same thunderstorm spawned a tornado…which touched down briefly just south of Lakewood.\u00a0 No damage was reported.\u00a0 Up to 3 inches of rain fell in a short time 8 miles southwest of Littleton.\u00a0 A few businesses in Englewood suffered minor water damage.\u00a0 A tornado was sighted between Watkins and Bennett.\u00a0 It was on the ground for 15 minutes.\u00a0 A weak tornado also touched down 4 miles southwest of Castle Rock. The twister tossed an aluminum shed into the air and carried it about 100 feet.\u00a0 A funnel cloud was sighted 15 miles east-northeast of Stapleton International Airport.
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\nIn 1988…golf ball size hail fell in Conifer along with 1.30 inches of rain.\u00a0 Three miles north of Louisville…1.10 inches of rain fell in 20 minutes.\u00a0 Ping pong ball size hail was measured in Arvada.
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\nIn 1990…3\/4 inch hail fell in Castle Rock.
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\nIn 1991…hail two inches in diameter fell near Evergreen. Hail to 1 inch diameter fell in Lakewood where a funnel cloud was also sighted.\u00a0 One inch diameter hail was also reported in Aurora.
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\nIn 2002…high temperatures…low relative humidities…and strong gusty winds allowed the Hayman Wildfire…located in the foothills to the southwest of Denver…to become the largest wildfire in the state’s history.\u00a0 Although the fire was initially started by a U.S. Forest Service employee…the ongoing drought and dry conditions allowed the fire to spread rapidly out of control.\u00a0 The wildfire consumed nearly 138 thousand acres of forest land and 133 homes before it could be contained and finally extinguished on June 30th.\u00a0 About 1800 households had to be evacuated during the blaze.\u00a0 Southwest winds aloft swept the smoke plume directly over metro Denver…creating poor air quality and blocking the sun.\u00a0 Much of metro Denver choked on smoke with the southern suburbs receiving the most.\u00a0 Smoke and ash restricted surface visibilities to a mile or less at times in the Denver and Castle Rock areas and to 2 miles at Denver International Airport.
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\nIn 2003…thunderstorm winds gusted to 51 mph at Denver International Airport.\u00a0 The storm produced only a trace of rain.
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\nIn 2004…severe thunderstorms produced large hail across portions of metro Denver for the second day in a row. The most extensive damage occurred across southern sections of metro Denver in Aurora…Lakewood…Littleton…and south Denver.\u00a0 The combined damage to homes and vehicles…not including commercial buildings…was estimated at 146.5 million dollars…making the event the 4th costliest insurance disaster in the state’s history.\u00a0 Hail as large as 2 1\/4 inches in diameter fell near southern Aurora with hail to 1 3\/4 inches in the city of Denver and in Lakewood. Hail to 1 1\/2 inches fell near Morrison with 1 inch hail measured in Thornton…near Buckley Air Force Base…and near Roggen.\u00a0 Hail to 3\/4 inch diameter fell in Littleton and near Conifer.\u00a0 A small tornado touched down near Bennett…but did no damage.<\/p>\n

9-10\u00a0<\/p>\n

In 1864…high water from melting snow combined with heavy rains over the upper reaches of the South Platte River forced the river over its banks and caused flooding of low lying areas along the river in the city.\u00a0 The amount of rainfall in the mountains and in the city is unknown.<\/p>\n

10\u00a0\u00a0\u00a0<\/p>\n

In 1943…a man was killed by lightning while using a surveying instrument at Buckley Field.
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\nIn 1969…hail stones 2 to 3 inches in diameter caused extensive damage to buildings and automobiles in an area from northeast of Boulder to Longmont.\u00a0 Two funnel clouds were reported near Castle Rock.\u00a0 A funnel cloud and 1 inch hail stones were reported 10 to 20 miles southeast of Stapleton International Airport.\u00a0 Hail stones to 1 3\/4 inches fell 3 miles west of Littleton.\u00a0 Hail to 3\/4 inch diameter fell over southeast Denver.
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\nIn 1988…thunderstorm winds clocked to 60 mph unroofed a porch and downed a fence at a home near Stapleton International Airport.\u00a0 A small tornado touched down briefly in northeast Aurora.\u00a0 Another small tornado touched down for 3 minutes in southeast Aurora.\u00a0 No damage was reported from either twister.
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\nIn 1989…a national weather service observer saw lightning strike 2 storage tanks at 40th and Havana…3\/8 mile northeast of Stapleton International Airport.\u00a0 The strike temporarily knocked out some weather observing equipment at the national weather service.
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\nIn 1991…a tornado was sighted 2 miles south of Castle Rock. No damage was reported.\u00a0 The funnel cloud associated with the tornado was sighted for 5 minutes by national weather service observers at Stapleton International Airport.
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\nIn 1994…lightning struck a home in Denver…which started a fire in the attic and caused minor damage.
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\nIn 1997…lightning struck a security guard at the castle pines golf course near Castle Rock.\u00a0 He received only minor injuries.
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\nIn 1999…severe thunderstorms rolled off the foothills over metro Denver…producing large hail and damaging winds.\u00a0 Hail to 1 inch diameter fell near Evergreen with 1 3\/4 inch hail measured west of Golden.\u00a0 Hail to 1 1\/2 inches fell in Commerce City with one inch hail in Lakewood…Wheat Ridge… The city of Denver and at Denver International Airport where thunderstorm winds gusted to 58 mph.\u00a0 As the storms moved east…3\/4 inch hail was reported in Aurora…and damaging thunderstorm winds developed between Bennett and Strasburg.\u00a0 Winds gusting as high as 69 mph blew half a metal roof from a shed in a Bennett lumberyard.\u00a0 A small barn was also leveled between Bennett and Strasburg.\u00a0 Winds also gusted to 58 mph near Manilla.
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\nIn 2000…a dry microburst produced a wind gust to 58 mph at Jefferson County airport.\u00a0 Thunderstorm winds gusted to 55 mph at Denver International Airport.
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\nIn 2003…hail as large as 1 3\/4 inches was measured at centennial airport and near Parker.
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\nIn 2005…hail to 7\/8 inch in diameter was reported near Parker with 3\/4 inch hail measured near Castle Rock.<\/p>\n

10-11<\/p>\n

In 1882…heavy thunderstorm rains on the morning of the 10th caused a rapid rise in dry creek…which enters the South Platte River at fairview in present day south Denver.\u00a0 This…combined with additional heavy rainfall on the 11th caused the South Platte River to overflow. Five people drowned and several houses were destroyed. Total losses in the city and suburbs was estimated at 75 thousand dollars.\u00a0 Total rainfall in central Denver was 2.21 inches over the 2 days.<\/p>\n

11\u00a0\u00a0\u00a0<\/p>\n

In 1947…a trace of snow fell over downtown Denver.\u00a0 Low temperature of 34 degrees was a record minimum for the date.
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\nIn 1962…hail caused extensive crop damage near Hudson northeast of Denver.
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\nIn 1970…stratiform rainfall totaled 3.16 inches at Stapleton International Airport.\u00a0 This was the greatest amount of precipitation ever recorded on a calendar day in June. In addition…it was the greatest amount of precipitation ever measured during any 24-hour period in June.\u00a0 The high temperature climbed to only 51 degrees…which was a record low maximum for the date.
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\nIn 1973…large hail from 3\/4 to 1 1\/2 inches in diameter fell west of Boulder.
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\nIn 1977…golf ball size hail was reported just south of Arapahoe County airport…now centennial airport.\u00a0 Lightning struck a home in Lakewood.
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\nIn 1988…a 30-year-old man was seriously injured by lightning while mowing his lawn in Denver.
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\nIn 1992…lightning started two house fires in the southern Denver suburbs where 3\/4 inch hail fell and a funnel cloud was sighted.
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\nIn 1999…severe thunderstorms formed over the palmer divide and moved across Douglas…Elbert…and Adams counties. Hail as large as 1 inch in diameter was reported in and near Castle Rock…Sedalia…Franktown…and Aurora.\u00a0 Hail as large as golfballs accumulated several inches deep and caused a large section of a corrugated metal roof of a greenhouse complex to collapse near Franktown.\u00a0 About a third of the roof covering the 30 thousand square foot building collapsed.\u00a0 Thirty-five workers were trapped in the debris…but only 3 were treated for minor injuries. Hail 1 to 2 feet deep blocked the roadways and slowed the arrival of emergency vehicles.\u00a0 Damage to the building was estimated to be around 3 million dollars.
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\nIn 2006…a man was struck and killed by lightning as he was returning to his car after leaving the mile high flea market near Henderson.\u00a0 Two others were knocked down…but not injured by the lightning strike.\u00a0 Severe thunderstorms produced large hail across the northern portion of metro Denver.\u00a0 Hail to 1 1\/4 inches in diameter was measured in Arvada…with 1 inch diameter hail reported near Fort Lupton.\u00a0 Hail to 7\/8 inch in diameter was recorded near Brighton…and hail…3\/4 inch in diameter…fell near Keenesburg.<\/p>\n

11-14<\/p>\n

In 1999…damage from several hailstorms in and near metro Denver totaled 35 million dollars.\u00a0 About 17.5 million dollars was from automobile claims with another 17.5 million in homeowner claims.\u00a0 The areas hardest hit by the storms included Castle Rock…Commerce City…Evergreen… And Golden.<\/p>\n

12\u00a0\u00a0\u00a0<\/p>\n

In 1901…south winds were sustained to 45 mph with an extreme velocity to 47 mph.
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\nIn 1917…northwest winds were sustained to 40 mph with gusts to 45 mph.
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\nIn 1927…flooding on little dry creek in Englewood resulted in two deaths.
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\nIn 1947…a trace of snow fell over downtown Denver during the early morning.\u00a0 This was the latest last snow of the season (trace or more).\u00a0 This also marked the end of the longest snow season…264 days…from the first snow…a trace…on September 22…1946.\u00a0 High temperature of 43 degrees was a record low maximum for the date.\u00a0 Minimum temperature of 33 degrees was a record low for the date.
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\nIn 1971…a funnel cloud sighted over Arvada possibly touched down at the base of the foothills.\u00a0 The public reported 3\/4 inch to 1 inch diameter hail over the city of Denver.
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\nIn 1974…strong thunderstorm winds caused damage to power lines in metro Denver.\u00a0 Northwest winds gusted to 45 mph at Stapleton International Airport.
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\nIn 1975…a thunderstorm wind gust to 56 mph was recorded at Stapleton International Airport.
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\nIn 1982…three small tornadoes were sighted near Bennett. One of the twisters caused minor crop and road damage along its path.\u00a0 A brief tornado was sighted by national weather service observers at Stapleton International Airport.
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\nIn 1983…3\/4 inch hail fell in Boulder.\u00a0 Golf ball to 3\/4 inch size hail fell in Arvada…denting cars and house roofs. Over a thousand hail damage insurance claims were filed from the area.\u00a0 Golf ball size hail also fell in Northglenn and Bennett…1 to 2 inch hail in Thornton…2 1\/2 inch hail in northeast of Denver.\u00a0 A tornado was sighted 10 miles northeast of Stapleton International Airport; it was only on the ground for 1 to 2 minutes.
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\nIn 1984…large hail pelted many parts of southern metro Denver.\u00a0 Fifteen aircraft were damaged by golf ball size hail at centennial airport.\u00a0 Golf ball size hail was reported in south Denver…and 3\/4 inch hail was measured in southeast Aurora.
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\nIn 1987…a small weak tornado touched down for about 3 minutes near the intersection of I-70 and Colorado blvd. In northeast Denver.\u00a0 No damage was recorded.\u00a0 A microburst wind gust to 53 mph was recorded at Stapleton International Airport.
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\nIn 1991…in the city of Denver…lightning struck a tree under which seven people were picnicking.\u00a0 One person was critically injured.\u00a0 The others received only minor injuries.
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\nIn 1992…golf ball size hail fell in Evergreen.
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\nIn 1994…microburst winds gusting to 53 mph kicked up some blowing dust at Stapleton International Airport.
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\nIn 1996…lightning struck a house in Parker…which sparked a fire.\u00a0 The bolt was strong enough to blow nails out of the drywall in one room.\u00a0 About 85 percent of the house was damaged.\u00a0 No dollar estimate of the damage was available. Lightning also struck a power line in Boulder…which left 250 customers without electricity for a short time.
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\nIn 1997…a tornado touched down near Parker…damaging some construction equipment.\u00a0 Hail to 2 inches in diameter was measured in Henderson.\u00a0 One inch diameter hail fell in the city of Denver with 3\/4 inch hail measured in Lakewood.
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\nIn 1999…hail as large as 1 1\/2 inches in diameter struck Hudson.\u00a0 A funnel cloud was sighted by ramp personnel to the east of Denver International Airport.
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\nIn 2003…lightning blew a hole in the roof of a house in Highlands Ranch.\u00a0 The bolt knocked several holes in the bedroom ceiling and damaged the home’s electrical system.
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\nIn 2004…lightning struck a home in Louisville…but caused only minor damage.
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\nIn 2006…a strong microburst wind gust…estimated at 69 mph… Ripped the roof off a horse barn near the intersection of Havana Street and Smith Road in Denver.\u00a0 A 13 year old girl was injured…when she was thrown from a horse inside the barn at the time the roof was being torn off.\u00a0 A thunderstorm produced a microburst wind gust to 54 mph and a trace of rainfall at Denver International Airport. A severe thunderstorm produced hail to 0.75 inch near Watkins.<\/p>\n

12-17<\/p>\n

In 2000…two large wildfires developed in the Front Range foothills as careless campers and very dry conditions proved to be a dangerous combination.\u00a0 Strong winds gusting in excess of 60 mph on the 13th fanned the flames… Spreading both wildfires out of control.\u00a0 Winds gusted to 78 mph atop Niwot Ridge near the continental divide west of Boulder.\u00a0 The hi meadows wildfire…about 35 miles southwest of Denver…consumed nearly 11 thousand acres and 80 structures…mostly high priced homes.\u00a0 The bobcat wildfire…located about 12 miles southwest of Fort Collins… Consumed nearly 11 thousand acres and 22 structures.\u00a0 Late on the 16th…a strong cold front moved south over the great plains into northeastern Colorado.\u00a0 Low level upslope conditions developed in the wake of the front…producing 2 to 4 inches of snowfall overnight at elevations above 8 thousand feet.\u00a0 Firefighters were able to contain both fires shortly thereafter.<\/p>\n

13\u00a0\u00a0\u00a0<\/p>\n

In 1956…a microburst caused a brief wind gust to 59 mph at Stapleton Airport.
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\nIn 1957…an unconfirmed tornado appeared to touch the ground in the vicinity of Franktown.\u00a0 No damage was reported from the twister.
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\nIn 1968…a violent gust of wind…possibly associated with a thunderstorm…caused 75 hundred dollars damage in Boulder.
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\nIn 1973…hail…1\/2 to 3\/4 inch in diameter…fell over Lakewood.\u00a0 Flash flooding occurred in west Denver from the same storm.
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\nIn 1974…a thunderstorm wind gust to 64 mph was recorded at Stapleton International Airport.
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\nIn 1977…hail the size of table tennis balls…1 1\/2 inches in diameter…was reported in Boulder.
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\nIn 1981…large hail to golf ball size fell in Denver… Northglenn…and Brighton.\u00a0 Hail as large as baseballs was reported in federal heights.
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\nIn 1984…one of the worst hailstorms ever experienced in metro Denver struck the northwestern suburbs of Arvada…Wheat Ridge…and Lakewood…but large hail also fell in Golden… Southeast Denver…and Aurora.\u00a0 Homes and other buildings sustained around 200 million dollars in damage.\u00a0 Thousands of cars were battered by giant hailstones…and total damage to vehicles was estimated at 150 million dollars.\u00a0 In some areas…golf ball size hail fell continuously for 30 to 40 minutes.\u00a0 Some places were pelted with a few stones as large as grapefruits!\u00a0 Roofs on thousands of structures were severely damaged.\u00a0 Uncounted car windshields were broken; two-thirds of Arvada’s police cars were rendered inoperable.\u00a0 Torrential rains…with as much as 4.75 inches in Lakewood clogged drains and caused widespread damage from flooding.\u00a0 In some places hail was washed into drifts several feet deep.\u00a0 About 20 people were injured by the giant hailstones.\u00a0 One couple was hospitalized.\u00a0 A woman drowned when she was trapped under a trailer by high water. Only pea size hail fell at Stapleton International Airport.
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\nIn 1988…2 inch hail fell in Parker.\u00a0 Soft hail 1 inch in diameter fell at the mouth of turkey creek canyon 5 miles southeast of Morrison.\u00a0 Hail between 1 inch and 1 3\/4 inches fell at both Bennett and Strasburg.\u00a0 A tornado touched down briefly at Strasburg.\u00a0 A brief funnel cloud was sighted by national weather service observers 15 miles southwest of Stapleton International Airport.
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\nIn 1991…a Boulder man was injured when struck by lightning while in a tent.\u00a0 He received only minor burns.
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\nIn 1997…lightning struck a home in Denver.\u00a0 The extent of the damage was unknown.\u00a0 A home in Littleton was also struck.\u00a0 The house caught fire…but the extent of the damage was not known.
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\nIn 1998…a strong mountain wave produced a brief period of high winds along the Front Range.\u00a0 A small building atop squaw pass west of Denver was blown down.\u00a0 Tree limbs were downed across metro Denver.\u00a0 Peak wind gusts included:\u00a0 80 mph on squaw pass…69 mph at Jefferson County Airport near Broomfield…and 60 mph in Westminster and at the National Center for Atmospheric Research in Boulder.\u00a0 West-northwest winds gusted to 51 mph at Denver International Airport.
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\nIn 2001…high winds developed briefly in Boulder County. A peak wind gust to 76 mph was recorded at the National Center for Atmospheric Research atop the mesa in Boulder. A wind gust to 72 mph was recorded at southern hills middle school in Boulder.\u00a0 Lightning started a small fire…which damaged the roof of a house in greenwood village.<\/p>\n

13-14<\/p>\n

In 2006…the high temperature of 99 degrees on the 13th equaled the record maximum temperature for the date first set in 1994.\u00a0 The high temperature of 102 degrees on the 14th was a new record maximum temperature for the date.<\/p>\n","protected":false},"excerpt":{"rendered":"

An extremely eventful week in weather history showing just how varied conditions can be.\u00a0 We of course see typical spring weather like tornadoes and hail but also a touch of snow and this week also marks the anniversary of the start of the Hayman Fire. 2-7\u00a0\u00a0 In 1921…heavy rainfall for nearly a week…on top of … Continue reading June 7 to June 13 – This week in Denver weather history<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,63],"tags":[81,106,62,741],"_links":{"self":[{"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/posts\/1638"}],"collection":[{"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/comments?post=1638"}],"version-history":[{"count":3,"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/posts\/1638\/revisions"}],"predecessor-version":[{"id":1640,"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/posts\/1638\/revisions\/1640"}],"wp:attachment":[{"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/media?parent=1638"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/categories?post=1638"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/tags?post=1638"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}