{"id":22521,"date":"2022-07-10T04:34:00","date_gmt":"2022-07-10T10:34:00","guid":{"rendered":"http:\/\/www.thorntonweather.com\/blog\/?p=22521"},"modified":"2022-07-14T04:42:55","modified_gmt":"2022-07-14T10:42:55","slug":"july-10-to-july-16-this-week-in-denver-weather-history-3","status":"publish","type":"post","link":"https:\/\/www.thorntonweather.com\/blog\/weather-history\/july-10-to-july-16-this-week-in-denver-weather-history-3\/","title":{"rendered":"July 10 to July 16: This Week in Denver Weather History"},"content":{"rendered":"

\"This<\/a><\/p>\n

Our look back at this week in Denver weather history demonstrates why July is considered the Mile High City\u2019s stormiest month. Many instances of flooding rains, damaging wind and hail and dangerous lightning are seen in our past.<\/p>\n

From the National Weather Service:<\/p>\n

1-18<\/p>\n

In 1874\u2026a streak of 18 consecutive days of 90 degrees 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.<\/p>\n

 <\/p>\n

1-31<\/p>\n

In 2012\u2026it was the hottest July on record in Denver since weather records began in 1872. The average temperature for the month was 78.9 degrees which was 4.7 degrees above normal. There were 27 days in which the high temperature equaled or exceeded 90 degrees\u2026which established a new record. There were also 7 days in which the temperature equaled or exceeded 100 degrees which tied the record set in 2005.<\/p>\n

6-23<\/p>\n

In 1901\u2026a 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.<\/p>\n

7-25<\/p>\n

In 1934\u2026a streak of 15 consecutive days of 90 degrees ranked 5th on the list of hot streaks. The record of 24 consecutive days was established in the summer of 2008.<\/p>\n

9-10<\/p>\n

In 1980\u2026a series of severe thunderstorms hit metro Denver\u2026 Dumping heavy rain and producing a spectacular lightning display lasting for several hours. A number of homes were damaged by lightning. Winds gusted to 60 mph at Stapleton International Airport where about half an inch of rain fell in just 10 minutes along with 1\/4 inch diameter hail. The evening thunderstorms continued into the early morning hours with total rainfall of 1.35 inches at Stapleton International Airport.<\/p>\n

In 1998\u2026thunderstorm rainfall totaled 2.04 inches at the site of the former Stapleton International Airport.<\/p>\n

10<\/p>\n

In 1878\u2026a lunar rainbow was observed during a light mist and fog.<\/p>\n

In 1895\u2026the temperature warmed to a high of only 53 degrees\u2026 The all-time record lowest maximum temperature for the month of July.<\/p>\n

In 1967\u2026golf ball size hail damaged aircraft at Jefferson County Airport near Broomfield.<\/p>\n

In 1983\u2026two people were injured when struck by lightning just southwest of Morrison. A man was injured when he was swept downstream by a flash flood on a tributary of clear creek in the canyon 8 miles west of Golden. Heavy thunderstorm rains caused mudslides which closed several roads. Rainfall amounts included: 1.75 inches in 20 minutes in southeast Denver\u20261.26 inches in 35 minutes in Boulder\u20262.14 inches in 2 hours in Lakewood\u20261.70 inches in 45 minutes in Aurora\u2026and 1.25 inches in 30 minutes atop Floyd Hill in the foothills west of Denver.<\/p>\n

In 1992\u2026storm spotters reported 3\/4 inch diameter hail near the construction site of the new Denver airport just northeast of the city.<\/p>\n

In 1995\u2026microburst winds toppled a pine tree 60 feet high and 2 feet in diameter in Denver. The tree fell and injured a man nearby. Microburst winds to 59 mph broke the glass on a door at the national weather service forecast office at the site of the former Stapleton International Airport.<\/p>\n

In 1998\u2026thunderstorm rainfall totaled 2.35 inches at Denver International Airport.<\/p>\n

In 2000\u2026three children were injured\u2026one critically\u2026when lightning hit a nearby tree at panorama point atop Flagstaff Mountain just west of Boulder. Lightning hit the tree\u2026entered the ground\u2026then struck the children. Lightning sparked a grassfire that burned about 50 acres at the Rocky Flats Environmental Test Facility. Also\u2026 Lightning sparked at least 6 fires in the Hudson and Keenesburg areas as thunderstorms\u2026accompanied with heavy rain\u2026large hail\u2026and tornadoes\u2026moved through southern Weld County. Over 2 inches of very heavy rain caused flooding along an I-76 exit ramp near Keenesburg. The fire department rescued 15 stranded motorists as high water inundated sections of the exit ramp and adjacent highway. Basements were also flooded in Keenesburg. One home reportedly had 7 feet of standing water in the basement before the rain subsided. A weak tornado (F0) touched down briefly near Brighton\u2026but caused no damage.<\/p>\n

In 2001\u2026a severe thunderstorm dumped 7\/8 inch diameter hail in wheat ridge.<\/p>\n

In 2002\u2026severe thunderstorms pelted the southern suburbs of metro Denver with large hail. Hail as large as 3 inches in diameter fell 6 miles southeast of Parker. Other large hail reports included 2 inch diameter hail around centennial airport and 3\/4 inch hail near Sedalia and Deckers. Hail as large as 3\/4 inch was also reported in Broomfield. Runoff from heavy thunderstorm rainfall in the Hayman fire burn area flooded lost creek ranch with up to 18 inches of water just off State Highway 126. Floodwaters damaged a very expensive rug in the lodge. A driveway to a residence was washed away. In Douglas County\u2026runoff damaged forest access roads in the Turkey Creek drainage.<\/p>\n

In 2011\u2026a severe thunderstorm produced intense\u00a0microburst winds in southeast Boulder County. A peak\u00a0wind gust to 75 mph was recorded in Superior with\u00a0gust to 58 mph\u20262 miles south of Lafayette. At Denver\u00a0International Airport\u2026a peak wind gust of 31 mph was\u00a0recorded.<\/p>\n

<\/span>11<\/p>\n

In 1872\u2026heavy rainfall started at 4:00 pm and continued into the night. The heavy rainfall damaged homes and buildings in all parts of the city. Rainfall totaled 1.64 inches.<\/p>\n

In 1888\u2026the temperature reached 100 degrees in downtown Denver.<\/p>\n

In 1954\u2026the high temperature climbed to 102 degrees at Stapleton Airport.<\/p>\n

In 1970\u2026a girl walking in a park in southeast Denver received eye and facial injuries when lightning struck nearby. Lightning also caused numerous power outages and heavy rainfall produced local flooding at several locations across metro Denver.<\/p>\n

In 1974\u2026large hail up to 1 1\/2 inches in diameter fell in Thornton.<\/p>\n

In 1990\u2026the worst hailstorm in American history in terms of dollar damage at the time battered metro Denver. Storm damage totaled 605 million dollars\u2026as it cut a 5-to 10-mile wide swath from just southeast of Estes Park to northeast of Colorado Springs. Hail as large as baseballs (2.75 inches) pounded metro Denver. Hardest hit areas were southeast Boulder County\u2026the Jefferson County Airport in Broomfield\u2026 Arvada\u2026east Wheat Ridge\u2026southwest and south-central Westminster\u2026west Thornton\u2026northwest\u2026west-central and downtown Denver\u2026northeast and east-central Lakewood\u2026just east of Littleton\u2026portions of Arapahoe County west of I-25\u2026 And northern and central Douglas County near Castle Rock and Franktown. Golf ball to baseball size hail severely damaged roofs on thousands of homes and buildings\u2026battered tens of thousands of automobiles\u2026windows\u2026signs\u2026street lights\u2026and traffic signals\u2026stripped paint\u2026awnings\u2026and trim from buildings\u2026punched holes in the roofs of two homes in Arvada\u2026knocked out power and telephone service to thousands of homes and businesses\u2026defoliated thousands of trees\u2026ripped up greens and fairways on a number of golf courses\u2026and severely damaged several aircraft tied down at Jefferson County Airport. Hail the size of baseballs fell for several minutes in old town Arvada. Later\u2026golf ball size hail and heavy rain pummeled two northwest Denver amusement parks. Hardest hit was Elitch Gardens Amusement Park where 47 people were injured and received treatment for bumps\u2026cuts\u2026and bruises at local hospitals. Many of the injured were stranded on rides during the storm when power failed. Hail clogged storm sewers\u2026causing rain water to back up 3 to 6 feet deep on some roads and intersections in Arvada. Several basements were flooded. In some places hail was washed into drifts several feet deep. In addition\u2026 The storm spawned 2 small tornadoes. One touched down briefly in Lakewood near 6th avenue and Kipling Blvd\u2026.but did no damage. In Castle Rock\u2026a tornado (F1) did heavy damage to some homes and vehicles in the Founders Village development near Ridge Road.<\/p>\n

In 2001\u2026lightning struck two homes in Thornton. Most of the damage was confined to the attics of both homes. Hail as large as 3\/4 inch in diameter fell in Keenesburg\u2026Longmont\u2026 And near Boulder.<\/p>\n

In 2011\u2026severe thunderstorms developed over parts of Adams\u00a0and Denver Counties. At Denver International Airport\u2026a\u00a0severe thunderstorm produced a peak wind gust to 66 mph\u2026with another gust to 59 mph measured in Denver. In\u00a0Commerce City\u2026the intense winds blew down a large tree.<\/p>\n

In 2015…a peak wind gust to 55 mph was measured from the northwest at Denver International Airport. A trace of rainfall was also observed.<\/p>\n

11-12<\/p>\n

In 1872\u2026heavy rain from 4:00 pm until 2:00 am caused much damage. Rainfall totaled 1.76 inches.<\/p>\n

12<\/p>\n

In 1881\u2026during the early evening\u2026a 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.<\/p>\n

In 1885\u2026thunderstorms produced widespread lightning across the city during the evening. Several people were injured when their homes were struck by lightning.<\/p>\n

In 1954\u2026the high temperature reached 101 degrees at Stapleton Airport.<\/p>\n

In 1962\u2026lightning struck and killed a Denver man\u2026while he was assisting a co-worker with his car.<\/p>\n

In 1971\u2026the temperature climbed to a high of 101 degrees at Stapleton International Airport.<\/p>\n

In 1974\u2026hail to 3\/4 inch in diameter fell in Castle Rock.<\/p>\n

In 1991\u2026hail 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.<\/p>\n

In 1996\u2026very 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\u2026 Propane tanks\u2026and bridges were destroyed in the flood\u2019s 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\u2026very little vegetation was available to slow the storm\u2019s runoff\u2026which resulted in the flash flood. Power\u2026water\u2026and sewer service were heavily damaged in the flood and\u2026in some cases\u2026beyond 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\u2026severe thunderstorms produced hail\u2026damaging winds\u2026and small tornadoes. Weak tornadoes (F0) were reported in Broomfield\u2026 3 miles east of Englewood\u2026and in Dacono. No damage was reported\u2026except 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\u2026strong 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\u20263\/4 to 1 1\/2 inches in diameter fell in Evergreen\u2026Lakewood\u2026Englewood\u2026Broomfield\u2026near Morrison\u2026northeast of Boulder\u2026and just east of Denver International Airport.<\/p>\n

In 2000\u2026heavy rain fell across a portion of the hi meadow fire burn area near buffalo creek\u2026causing 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\u2026small sections of a U.S. Forest Service road along Miller Creek were washed out. Lightning struck a home in Castle Rock\u2026causing extensive damage to the roof\u2026attic\u2026and second floor.<\/p>\n

13<\/p>\n

In 1902\u2026west winds were sustained to 42 mph with gusts to 48 mph.<\/p>\n

In 1910\u2026an apparent dry microburst produced northeast winds sustained to 41 mph.<\/p>\n

In 1961\u2026hail as large as 1 inch in diameter was reported near Commerce City.<\/p>\n

In 1982\u2026a tornado touched down briefly south of Parker. No damage was reported.<\/p>\n

In 1985\u2026thunderstorms 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.<\/p>\n

In 1986\u2026a lightning bolt struck a church steeple in Littleton\u2026toppling it to the ground.<\/p>\n

In 1989\u2026thunderstorm winds blew down trees and bent a metal basketball fixture just north of Castle Rock in the Surrey Ridge area.<\/p>\n

In 1993\u20261 inch diameter hail was measured in Lakewood.<\/p>\n

In 1995\u2026lightning struck and injured an assistant coach during a baseball game at Highlands Ranch south of Denver.<\/p>\n

In 1996\u20263\/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\u20263 miles east of Bennett. A few cars were also overturned.<\/p>\n

In 2001\u2026heavy 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\u2026flooding 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.<\/p>\n

In 2003\u2026maximum temperature of 100 degrees was a record high for the date.<\/p>\n

In 2009\u2026severe thunderstorms produced wind gusts to 70 mph near Parker and Strasburg. At Denver International Airport\u2026west-northwest winds gusted to 40 mph.<\/p>\n

In 2011\u2026severe thunderstorms produced extensive damage as\u00a0they moved across the Urban Corridor. At Denver\u00a0International Airport alone\u2026large hail up to golfball\u00a0size\u2026very heavy rain and wind gusts to 59 mph caused\u00a0substantial damage to 40 planes and stranded approximately\u00a01500 passengers overnight. Frontier and United Airlines\u00a0were hardest hit as dozens of planes were taken out of\u00a0service for repairs; forcing the cancellation of at least\u00a0220 flights over the next several days. Damage to the\u00a0aircrafts alone was nearly five million dollars. In\u00a0addition\u202683 cars in airport parking lots were damaged\u2026 along with some police cars and maintenance vehicles. In\u00a0Watkins\u2026two people suffered minor injuries and 35 to 40\u00a0homes were damaged. As many as two hundred residents in a\u00a0mobile home park were left homeless by the storm\u2026forcing\u00a0the Red Cross to open a shelter at Bennett High School.\u00a0The trailer park contained 52 mobile homes\u202614 recreational\u00a0vehicles\u20263 houses and a commercial building. Hailstones\u00a0the size of softballs cratered the north sides of the\u00a0mobile homes. Some farmers in the area said they lost as\u00a0much as 85 percent of their total wheat crop. Power lines\u00a0were also damaged which affected about 1200 customers in\u00a0Watkins. The strong winds also flipped over a tractor-trailer rig on I-70 near Watkins Road. Insurance claims for\u00a0the Watkins\u2026Bennett and Brighton areas was estimated to be\u00a0seventeen million dollars. The total damage estimate across\u00a0the entire Urban Corridor\u2026was near one hundred sixty five\u00a0million dollars\u2026and included 17200 automobile claims and\u00a012600 homeowner claims. In addition\u2026thunderstorms\u00a0producing very heavy rainfall\u2026caused flash flooding in the\u00a0Four Mile Canyon burn scar west of Boulder. Three homes\u00a0reportedly had water up to the windows with water flowing\u00a0into structures at Fourmile Canyon Road and Gold Run Road.\u00a0The heavy rain caused a 4-ft surge along Fourmile Creek\u00a0through Orodell and into the entry of Boulder Creek.\u00a0Several roads were affected which restricted access to the\u00a0area. Roads were closed due to water and debris. Private\u00a0bridges and drives were washed out and several residents\u00a0were stranded and later rescued. Numerous cars were damaged\u00a0in debris flows and several structures suffered flood\u00a0damage but were not destroyed.<\/p>\n

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.<\/p>\n

13-5<\/p>\n

In 2008\u2026a streak of 24 consecutive days of 90 degrees shattered the previous record of 18 consecutive days established in 1901 and 1874. Ironically\u2026no new single day record high temperatures were set in the month of July. In August however\u2026a record of 104 degrees was set on the 1st\u2026and another record of 103 degrees was set on the 2nd. In addition\u2026a record low min of 70 degrees was set on August 2nd.<\/p>\n

14<\/p>\n

In 1878\u2026the temperature reached a high of 100 degrees in downtown Denver.<\/p>\n

In 1906\u2026a thunderstorm produced north winds sustained to 52 mph and 0.53 inch of rain in 10 minutes.<\/p>\n

In 1912\u2026a 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\u2026which 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\u2026causing authorities to declare it unsafe except for pedestrians. By nightfall\u2026 Union Depot was under 2 to 3 feet of water\u2026and 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\u2026parkways\u2026bridges 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\u2026of which nearly 1.75 inch fell in 30 minutes in central Denver\u2026 Was accompanied by severe thunderstorm winds sustained to 55 mph with gusts as high as 74 mph.<\/p>\n

In 1933\u2026thunderstorm rainfall was only 0.01 inch\u2026but northwest winds sustained to 37 mph with gusts to 47 mph produced a dust storm for about 10 minutes during the late afternoon.<\/p>\n

In 1967\u2026heavy rain flooded areas of north and west metro Denver\u2026and high water closed street intersections in the city. Crops were damaged\u2026and 200 chickens drowned by flooding northwest of Denver where farm buildings and irrigation facilities were also damaged.<\/p>\n

In 1969\u2026a thunderstorm wind gust to 51 mph was recorded at Stapleton International Airport.<\/p>\n

In 1975\u2026heavy 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\u2026and numerous homes and yards were damaged.<\/p>\n

In 1986\u2026thunderstorm winds blew down a power line in west- central Jefferson County. The storm\u2026as it moved into Denver\u2026snapped tree limbs and damaged a fence near Washington Park. Wind gusts in the area were estimated at 80 to 85 mph.<\/p>\n

In 1990\u2026thunderstorm 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.<\/p>\n

In 1993\u2026a severe thunderstorm moved across southern sections of metro Denver. Dime size hail fell in Lakewood\u2026and hail up to one inch diameter was measured at Cheery Creek Reservoir. Later in the afternoon\u2026hail to one inch diameter fell in Golden and Arvada.<\/p>\n

In 1994\u2026hail to 1 1\/4 inches in diameter fell north of Bennett.<\/p>\n

In 1998\u2026dry 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\u2026dry microburst winds gusted to 61 mph.<\/p>\n

In 1995\u2026thunderstorm winds gusted to 62 mph near Strasburg.<\/p>\n

In 2001\u2026a severe thunderstorm dumped hail to 3\/4 inch in diameter in the foothills about 10 miles northwest of Golden.<\/p>\n

In 2011\u2026severe thunderstorms in the Denver metropolitan\u00a0area produced very heavy rain\u2026large hail and damaging\u00a0winds. The strong winds toppled a few trees and the heavy\u00a0rain caused street flooding and minor flash flooding.\u00a0Several cars were stranded at the intersection of Santa Fe\u00a0Drive and Oxford\u2026and near Broadway and U.S. Highway 285.\u00a0A 16-yr old teenager was seriously injured when he tried\u00a0to retrieve a ball along the banks of West Toll Gate Creek.\u00a0He was pulled from the swollen creek and died several days\u00a0later. Hail up to one inch in diameter was reported\u00a0around the area. The thunderstorms also produced frequent\u00a0lightning. One strike sparked a fire at Aspen Academy\u2026a\u00a0private school in Greenwood Village. Most of the damage\u00a0was confined to the roof and attic. In Englewood\u2026a\u00a040-ft tree was blown into a house and knocked down some\u00a0power lines. At Denver International Airport\u2026a severe\u00a0thunderstorm produced sustained winds of 47 mph and a\u00a0peak wind gust to 68 mph.<\/p>\n

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.<\/p>\n

14-15<\/p>\n

In 1985\u2026thunderstorms 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\u2026and Thornton was soaked with 2 inches in 45 minutes. At least 5 homes in Arvada suffered extensive damage from water and mud\u2026and many streets and basements were flooded. In southern Jefferson County\u202611 homes were struck by lightning.<\/p>\n

15<\/p>\n

In 1879\u2026a terrific hail storm occurred in the vicinity 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\u2019s eggs fell thick and fast and broke nearly every pane of glass in the windows of the building. A \u201cwaterspout\u201d 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\u2026leaving 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\u2026heavy rains in the vicinity of the headwaters of Cherry Creek produced a rapid rise in the creek\u2026which drowned a few head of cattle and washed away two footbridges and some fences. Only 0.10 inch of rainfall was recorded in Denver.<\/p>\n

In 1896\u2026a thunderstorm produced sustained southwest winds to 40 mph with gusts to 46 mph.<\/p>\n

In 1902\u2026the temperature reached a high of 100 degrees in downtown Denver\u2026which was a record maximum for the date.<\/p>\n

In 1929\u2026a 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\u2026severe lightning\u2026 And high winds accompanied the heavy rain. Basements were flooded\u2026and 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.<\/p>\n

In 1959\u2026thunderstorm 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\u2026complete double rainbows were observed from the weather bureau office at Stapleton Airport.<\/p>\n

In 1962\u2026hail pelted the area in Adams County around Henderson and Brighton\u2026causing extensive damage to corn\u2026grain\u2026beets\u2026and row crops. Crop damage was estimated at 250 thousand dollars.<\/p>\n

In 1963\u2026a man received severe burns when struck by lightning while painting a building in south Denver.<\/p>\n

In 1965\u2026a state patrolman sighted a tornado near Bennett. It touched down over open ground\u2026but caused no damage.<\/p>\n

In 1967\u2026heavy rains flooded streets and underpasses in south Denver. Heavy rain and minor wind damage were reported in Wheat Ridge\u2026Aurora\u2026Englewood\u2026and Littleton. Basements were flooded and power disrupted. The clouds and rain resulted in a high temperature of only 72 degrees\u2026which was a record low maximum for the date.<\/p>\n

In 1974\u2026a severe lightning storm damaged several homes and caused a number of power outages in both Denver and western Arapahoe counties.<\/p>\n

In 1975\u2026lightning killed a girl west of Boulder.<\/p>\n

In 1982\u2026winds gusted to 60 mph at Stapleton International Airport\u2026and strong winds blew down walls at a construction site in Aurora where a nearby tree was uprooted.<\/p>\n

In 1985\u20260.79 inch of rain fell in 30 minutes at Castle Rock. Much of the town lost power when lightning struck the town\u2019s transformer.<\/p>\n

In 1992\u2026a 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\u2026producing 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\u2026leaving water up to 18 inches deep in some areas. Thunderstorm rainfall was measured at 0.97 inch at Stapleton International Airport\u2026where 3\/8th inch diameter hail fell and south winds gusted to 44 mph.<\/p>\n

In 1993\u2026dime 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.<\/p>\n

In 1994\u2026a small\u2026short-lived tornado caused damage to a house under construction in Parker.<\/p>\n

In 1995\u2026thunderstorm winds of unknown strength downed trees and branches\u2026damaging a porch and nearby cars in Denver.<\/p>\n

In 1998\u2026hail to 7\/8 inch in diameter fell near Keenesburg.<\/p>\n

In 2000\u2026this 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\u2026from 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\u2026July 1st-18th\u20261874 and July 6th-23rd\u20261901.<\/p>\n

In 2005\u2026severe 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.<\/p>\n

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.<\/p>\n

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.<\/p>\n

15-16<\/p>\n

In 2006\u2026a 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.<\/p>\n

16<\/p>\n

In 1911\u2026thunderstorm winds were sustained to 44 mph from the northwest.<\/p>\n

In 1959\u2026a thunderstorm produced 3\/8 inch diameter hail and a wind gust to 60 mph at Stapleton Airport.<\/p>\n

In 1972\u2026two tornadoes were sighted by the public to the southeast of Aurora. No damage was reported.<\/p>\n

In 1978\u2026a thunderstorm wind gust to 52 mph was recorded at Stapleton International Airport.<\/p>\n

In 1980\u2026a severe thunderstorm ripped through metro Denver\u2026 Producing torrential rain\u2026large hail\u2026and strong winds. In Aurora\u2026winds 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\u2026Lakewood\u2026Parker\u2026 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\u2026breaking windows and doors\u2026while 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\u20261\/4 inch hail and 0.77 inch of rain fell.<\/p>\n

In 1983\u2026severe thunderstorms dumped large hail over much of metro Denver. Hail to 3\/4 inch in diameter fell in Littleton and Northglenn\u2026with 3\/4 to 1 inch hail in Arvada\u20261 to 1 1\/2 inch hail in extreme northwest Denver\u20261 3\/4 inch hail in Lakewood\u20261 1\/2 inch hail in south Arvada and just northeast of Aurora\u2026and 1 5\/8 inch hail on Green Mountain.<\/p>\n

In 1994\u2026spotters reported a brief tornado touchdown in an open field just north of Fort Lupton. No damage or injuries were reported.<\/p>\n

In 2000\u2026very moist and unstable weather conditions\u2026along with low level upslope flow during the late afternoon and evening\u2026combined to produce heavy thunderstorm rainfall\u2026 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\u2026 An automated rain gage measured 3.86 inches of rain. Since the rain fell in a relatively open area\u2026no flood damage was reported. However\u2026in greenwood village near the intersection of Peoria and Belleview\u2026the 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.<\/p>\n

In 2003\u2026the high temperature of 101 degrees was a record maximum temperature for the date.<\/p>\n

In 2004\u2026locally 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.<\/p>\n

In 2005\u2026the 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.<\/p>\n

16-18<\/p>\n

In 1997\u2026an extended hot spell resulted in 3 temperature records being set. The maximum temperature reached 98 degrees on each of the days\u2026setting 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.<\/p>\n","protected":false},"excerpt":{"rendered":"

Our look back at this week in Denver weather history demonstrates why July is considered the Mile High City\u2019s stormiest month. Many instances of flooding rains, damaging wind and hail and dangerous lightning are seen in our past. From the National Weather Service: 1-18 In 1874\u2026a streak of 18 consecutive days of 90 degrees tied … Continue reading July 10 to July 16: 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":[63],"tags":[81,106,62,34,741],"_links":{"self":[{"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/posts\/22521"}],"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=22521"}],"version-history":[{"count":1,"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/posts\/22521\/revisions"}],"predecessor-version":[{"id":22522,"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/posts\/22521\/revisions\/22522"}],"wp:attachment":[{"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/media?parent=22521"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/categories?post=22521"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/tags?post=22521"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}