{"id":20817,"date":"2020-07-20T02:17:33","date_gmt":"2020-07-20T08:17:33","guid":{"rendered":"http:\/\/www.thorntonweather.com\/blog\/?p=20817"},"modified":"2020-07-20T05:21:53","modified_gmt":"2020-07-20T11:21:53","slug":"july-19-to-july-25-this-week-in-denver-weather-history-3","status":"publish","type":"post","link":"https:\/\/www.thorntonweather.com\/blog\/weather-history\/july-19-to-july-25-this-week-in-denver-weather-history-3\/","title":{"rendered":"July 19 to July 25: This week in Denver weather history"},"content":{"rendered":"

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

This week in weather history we really begin to see the arrival of monsoon season and the heavy rains and flooding it can bring to the Thornton and Denver area.\u00a0 Be sure to check out the events on the 23rd and what the heavy rain brought to the Thornton area in 2004.<\/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

7-25<\/p>\n

In 1934\u2026a streak of 15 consecutive days of 90 degrees ranked 5th on the list of hot streaks.\u00a0 The record of 24 consecutive days was established in the summer of 2008.<\/p>\n

13-5<\/p>\n

In 2008\u2026a streak of 26 consecutive days of 90 degrees shattered the previous record of 18 consecutive days established in 1901 and 1874.\u00a0\u00a0 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

18-19<\/p>\n

In 2003\u2026heavy rain producing thunderstorms caused flash flooding across southern metro Denver.\u00a0 Automated rain gages measured 2 to 3 inches of rain in less than an hour.\u00a0 The heavy rainfall caused many intersections and underpasses to flood\u2026stranding motorists.\u00a0 Sections of I-25 and I-225 were closed due to the high water.<\/p>\n

18-2<\/p>\n

In 1987\u2026a streak of 16 consecutive days of 90 degrees ranked 4th on the list of hot streaks.\u00a0 The record of 24 consecutive days was established in the summer of 2008.<\/p>\n

19<\/p>\n

In 1875\u2026recent heavy rains produced high waters on many creeks and rivers in the area\u2026which threatened the destruction of property at some locations.\u00a0 Cherry Creek in the city was running the highest in 10 years.\u00a0 Heavy rain in the mining regions over the last 2 days resulted in water running \u201ceverywhere\u201d and the suspension of some work.<\/p>\n

In 1881\u2026a thunderstorm passing across the city produced lightning with no rain.\u00a0 A woman was seriously injured when struck by lightning several blocks from the weather office in downtown Denver.<\/p>\n

In 1934\u2026the temperature reached a high of 100 degrees in downtown Denver.<\/p>\n

In 1965\u2026hail\u2026rain\u2026and lightning hit west metro Denver. Hail stones as large as 1 1\/2 inches in diameter accumulated to a depth of 2 inches in Evergreen where 2.95 inches of rain in 2 hours caused some flooding in the business section of the town.\u00a0 Lightning caused some power outages.<\/p>\n

In 1973\u2026two funnel clouds were observed 5 miles southeast of Littleton.\u00a0 The same funnel clouds were observed for 20 minutes\u20265 miles west and 5 miles west-southwest of Arapahoe County airport\u2026now Centennial Airport.<\/p>\n

In 1975\u2026lightning injured a man in Denver and caused power outages in Aurora\u2026Lakewood\u2026Westminster\u2026and west Denver.<\/p>\n

In 1984\u2026strong thunderstorm winds gusting to 45 mph shattered 7 large plate glass windows at Stapleton International Airport.<\/p>\n

In 1985\u2026a tornado touched down in the surrey ridge area of northern Douglas County\u2026just west of I-25.\u00a0 Ten homes were damaged; one under construction was nearly destroyed.\u00a0 Two vehicles were thrown off I-25 injuring three people.\u00a0 A pick-up truck was thrown 50 feet by the twister.\u00a0 In addition\u2026a cluster of severe thunderstorms pounded all of metro Denver with torrential rain\u2026hail\u2026and wind.\u00a0 The heaviest rain fell in Aurora where one location reported 2.37 inches in just 40 minutes.\u00a0 One location in northeast Aurora received a total of 4.30 inches from the storm. There was extensive street and basement flooding\u2026and a number of roads were damaged or washed out.\u00a0 An Aurora boy suffered minor injuries when he was washed into a drainage ditch.\u00a0 Golf ball size hail in Aurora piled up to 5 inches deep.\u00a0 An inch of rain fell in 20 minutes at Stapleton International Airport\u2026closing it to air traffic for an hour.\u00a0 Up to 1 1\/2 inches of rain fell in just 15 minutes over central Denver with the high water closing I-25.\u00a0 The water was so deep on the freeway\u2026that one vehicle was completely submerged and people were diving into the water from the freeway overpass.\u00a0 Three homes in Littleton were damaged by lightning.\u00a0 Wind blew out several windows from a high rise apartment building in southeast Denver. Rainfall totaled 1.51 inches at Stapleton International Airport.<\/p>\n

In 1997\u2026torrential rain and damaging hail pummeled eastern sections of metro Denver.\u00a0 Hail up to 1.25 inches in diameter fell at the national weather service office on the site of the former Stapleton International Airport.\u00a0 The hail continued for about 15 minutes and accumulated to a depth of 2 to 3 inches\u2026causing extensive damage to cars in the area.\u00a0 Heavy rainfall totaled 3.83 inches in about an hour from the nearly stationary thunderstorm.\u00a0 Numerous cars stalled along I-70\u2026and several homes were flooded in east Denver.\u00a0 The roof of a building collapsed under the weight of the water.\u00a0 The next day several \u201cfatalities\u201d were discovered near the national weather service office; two prairie dogs were found dead along with three rabbits that either drowned or were killed by the large hail.<\/p>\n

In 1999\u2026lightning struck two residences in Littleton\u2026but caused only minor damage.\u00a0 Lightning triggered a fire at a residence in cherry hills village.\u00a0 A small portion of the roof and ceiling were damaged before the fire could be extinguished.<\/p>\n

In 2000\u2026hail as large as 1.25 inches in diameter fell near Roggen northeast of Denver.<\/p>\n

In 2004\u2026heavy rainfall caused flooding on the Virginia Canyon Road near Idaho Springs\u2026which had to be closed for repairs.<\/p>\n

In 2006\u2026the temperature climbed to a high of 100 degrees.\u00a0 The high temperature was not a record maximum for the date.<\/p>\n

In 2007\u2026a severe thunderstorm produced large hail\u2026up to 1 inch in diameter\u2026about 6 miles north of Northglenn.<\/p>\n

In 2016…two men at the Indian Tree Golf Course in Arvada were struck by lightning when they sought shelter from a rapidly developing thunderstorm under a tree. One man died from his injuries while the other suffered minor injuries. Very heavy rainfall was observed across central and southern parts of Denver. The storm dropped around 1.5 inches of rainfall in 30 minutes and caused minor street flooding. Nickel size hail was reported west of Pine in central Jefferson County.<\/p>\n

<\/span>19-23<\/p>\n

In 2005\u2026the high temperature climbed above 100 degrees on each of the 5 days with readings of 101 on the 19th\u2026105 on the 20th\u2026104 on the 21st\u2026and 102 on both the 22nd and 23rd. A new record maximum temperature for the month of July of 105 degrees was set on the 20th\u2026which also equaled the all time record maximum for Denver of 105 degrees first set on august 8th in 1878.\u00a0 Daily maximum temperature records were set on each day\u2026and the 5 day period equaled the record for the most consecutive days of 100 degrees or more first set from July 4th through 8th in 1989.\u00a0 The intense heat resulted in a high use of electricity for cooling purposes.\u00a0 The demand for electric power exceeded the supply and rolling black-outs\u2026 Each lasting about an hour\u2026were scheduled across metro Denver during the afternoons and early evenings.<\/p>\n

20<\/p>\n

In 1898\u2026an apparent thunderstorm produced sustained northwest winds to 45 mph with gusts to 51 mph.<\/p>\n

In 1939\u2026the high temperature reached 102 degrees in downtown Denver.\u00a0 This was the highest temperature recorded since august 8\u20261878\u2026a period of 61 years\u2026and the third highest temperature of record at the time.\u00a0 Six miles to the east\u2026 At Denver municipal airport\u2026the maximum temperature reached 104 degrees.\u00a0 A dry period during mid-July\u2026combined with low relative humidities\u2026resulted in an unusually large number of forest fires in the mountains west of Denver.<\/p>\n

In 1941\u2026an afternoon thunderstorm caused two lightning deaths.\u00a0 The men were struck by lightning near the Denver airport.<\/p>\n

In 1951\u2026a thunderstorm wind gust to 54 mph was recorded at Stapleton Airport.<\/p>\n

In 1965\u2026heavy rain west of Denver damaged roads and bridges. Two bridges in Golden were washed out.\u00a0 Lightning in Denver caused some power failures and fires\u2026mostly in the northeast section of the city.\u00a0 Heavy rain caused street flooding in the city of Denver.\u00a0 Hail as large as 1\/2 inch in diameter and 0.40 inch of rain in 5 minutes were measured at Stapleton International Airport where precipitation totaled 1.09 inches.\u00a0 Lightning damaged a house in Littleton\u2026and caused a power outage in idaho springs.<\/p>\n

In 1973\u2026lightning damage was reported west of Arvada.<\/p>\n

In 1975\u2026heavy rains caused flash flooding across metro Denver\u2026resulting in the closing of several streets and damage to numerous homes and businesses.\u00a0 Hail 1\/2 to 3\/4 inch in diameter was reported.<\/p>\n

In 1976\u2026heavy thunderstorms caused flooding of streets in southeast Denver and western Arapahoe counties.\u00a0 A total of 3.35 inches of rain was measured at Kassler southwest of Littleton.<\/p>\n

In 1978\u2026a girl was injured by lightning at a country club southwest of Denver.<\/p>\n

In 1984\u2026heavy rain was reported just east of Buckley Field in Aurora where 1.15 inches fell in just 45 minutes.<\/p>\n

In 1986\u2026thunderstorms dumped heavy rain across metro Denver causing extensive street flooding\u2026power outages\u2026and basement flooding.\u00a0 The greatest recorded rainfall was 4.39 inches in Lakewood.\u00a0 In extreme northwest Denver\u20262.29 inches of rain fell in just 20 minutes.\u00a0 Arvada was drenched with 2.60 inches of rain\u2026and over an inch fell in southeast Denver and adjacent sections of Aurora.<\/p>\n

In 1990\u2026heavy thunderstorm rains caused flash flooding in sections of Littleton where 1.20 inches of rain fell in less than 30 minutes.\u00a0 The deluge caused dry creek to jump its banks\u2026causing damage to residential streets\u2026curbs\u2026and sidewalks.\u00a0 Nearly 100 vehicles were stranded for a time in fender-deep water when sewers and drainage ditches became choked with debris.\u00a0 The heavy runoff submerged many Littleton streets and intersections.<\/p>\n

In 1992\u2026strong thunderstorms moved slowly through east metro Denver\u2026producing rainfall up to 2.50 inches in a short time. Weather spotters reported 0.75 to 1.00 inch of rain in less than 30 minutes.\u00a0 Many areas of southeast Denver were flooded\u2026including I-25 where up to 6 feet of water filled some underpasses.\u00a0 Hail to 3\/4 inch in diameter fell in Aurora.<\/p>\n

In 1995\u2026a tornado touched down briefly in an open field near Strasburg.\u00a0 Thunderstorm winds gusted to 58 mph at Centennial Airport.<\/p>\n

In 1996\u2026strong thunderstorm winds damaged the building of a telephone installation company in the city of Denver.<\/p>\n

In 1998\u2026the high temperature reached 100 degrees at Denver International Airport.<\/p>\n

In 2006\u2026heavy rainfall in the overland wildfire burn area caused minor flash flooding in Jamestown.\u00a0 The roads behind the Jamestown fire hall were washed out\u2026when a culvert was blocked by debris.\u00a0 A rockslide was also reported in town.<\/p>\n

In 2009\u2026a severe thunderstorm produced damaging winds\u2026 Large hail and very heavy rain across the western and southern suburbs of Denver. Widespread damage was observed in the cities of Arvada\u2026Lakewood and Wheat Ridge. The intense straightline winds were the result of a wet microburst which downed hundreds of trees and snapped power poles. Wind gusts to 80 mph were reported along with hail up to 1 3\/4 inches in diameter. The combination of wind and hail caused widespread damage to homes and vehicles. The damage claim estimates totaled 350 million dollars; about 32900 claims were filed for homes\u2026while another 19500 claims were filed for vehicles. As many as 90000 homes and businesses were left without power. In some areas it took up to 3 days to completely restore electrical service. Minor injuries were reported from broken glass during the storm\u2026but no one was hospitalized. The storm crippled the computers at the Colorado crime information center in Lakewood for nearly 3 hours. One weak tornado touched down near Parker but did no damage. In southern weld County\u2026 Severe thunderstorms produced widespread damage over 150 square miles of farmland. In all\u2026400 farms were directly impacted by severe weather. Damage to crops alone was estimated to 3 million dollars. At Denver International Airport\u2026a peak wind gust to 48 mph was observed from the northeast. In addition\u20261.01 inches was measured at the airport.<\/p>\n

In 2013\u2026severe thunderstorms produced large hail\u2026 Ranging in size from nickel to golf ball\u2026across portions of Arapahoe\u2026 Denver\u2026Elbert and Weld counties. In addition\u2026 Damaging wind gusts to 60 mph snapped large tree branches in Thornton and 3 miles west-southwest of Buckley AFB. In Bennett\u2026hail up to 1 1\/2 inches in diameter was reported. At Denver International Airport\u2026a peak wind gust to 58 mph was recorded from the northeast.<\/p>\n

In 2017…a severe thunderstorm north of Elizabeth produced hail up to 1 inch in diameter. The hail completely covered the ground.<\/p>\n

<\/span>20-23<\/p>\n

In 1961\u2026unusually cool weather for July resulted in several temperature records.\u00a0 Record minimum temperatures were set or equaled on each day with readings of 51\u202651\u202649\u2026 And 49 degrees.\u00a0 High temperature of only 64 degrees on the 21st was a record low maximum for the date.<\/p>\n

20-25<\/p>\n

In 1965\u2026heavy showers and thunderstorms doused metro Denver with significant rain each day.\u00a0 Rainfall for the six days totaled 5.16 inches at Stapleton International Airport. Massive rainfall occurred on the 20th\u202621st\u2026and 25th\u2026 Flooding streets and basements and causing streams to overflow.\u00a0 The heaviest rainfall\u20262.05 inches\u2026at Stapleton International Airport occurred on the 25th.<\/p>\n

21<\/p>\n

In 1879\u2026lightning struck a house in north Denver.\u00a0 The bolt struck the center of the roof driving part of it into the house and scattered shingles all over the yard.\u00a0 Furniture in the house was heavily damaged\u2026but none of the nine residents were injured other than being stunned.\u00a0 The noise sounded as if a cannon had been exploded.\u00a0 Rainfall was only 0.02 inch downtown.<\/p>\n

In 1921\u2026northwest winds were sustained to 42 mph with gusts to 48 mph.<\/p>\n

In 1943\u2026a severe thunderstorm during the evening caused the death of a man whose truck skidded on a muddy roadway on a steep hill and overturned pinning him underneath.\u00a0 Several small fires were started by the lightning\u2026and electrical wires were downed.\u00a0 No serious property damage was reported\u2026 But firemen answered 19 alarms in 2 hours.\u00a0 One person was injured by lightning.<\/p>\n

In 1965\u2026a funnel cloud was sighted in the northern portion of Denver.\u00a0 Later\u20264 or 5 funnel clouds were sighted about 15 miles north of Stapleton International Airport.\u00a0 Heavy rain accompanied by hail washed away part of a city street and caused other flooding in central city.\u00a0 There were heavy showers and some damage from lightning in both Denver and Boulder.\u00a0 Marble to golf ball size hail fell 10 miles northwest of Stapleton Airport.<\/p>\n

In 1966\u2026heavy thunderstorm rains flooded streets and basements across metro Denver.<\/p>\n

In 1973\u2026a tornado touched down briefly 2 miles northeast of Parker\u2026causing minor damage.\u00a0 Funnel clouds were also sighted 3 miles northeast of Sedalia\u202611 miles south southeast of Stapleton International Airport\u2026and near Parker.\u00a0 Hail to 3\/4 inch in diameter fell over the western suburbs of Denver.<\/p>\n

In 1974\u2026heavy thunderstorm rains caused flash flooding in metro Denver.\u00a0 Rainfall totaled 1.26 inches at Stapleton International Airport.<\/p>\n

In 1976\u2026heavy thunderstorm rains occurred across south metro Denver with 1.75 inches of rain recorded in 40 minutes in southeast Aurora and 2.00 inches in 20 minutes at Cheery Creek Reservoir.\u00a0 A funnel cloud was sighted by the public east of Arapahoe County airport\u2026now Centennial Airport.<\/p>\n

In 1981\u2026the temperature reached 100 degrees\u2026setting a new record high for the date.<\/p>\n

In 1983\u2026downpours drenched the Front Range where amounts of 1 to 2 inches were common.\u00a0 The heaviest reported rainfall was 2.36 inches in a 6-hour period at Parker where hail to 3\/4 inch and wind gusts as high as 75 mph occurred.\u00a0 Up to golf ball size hail fell in the Parker and Castle Rock areas; wind gusts to 75 mph were recorded in Castle Rock.<\/p>\n

In 1993\u2026thunderstorm winds toppled a 3 story high russian olive tree in Boulder.\u00a0 The tree barely hit and only slightly damaged a parked car.<\/p>\n

In 1995\u2026thunderstorm winds from the west gusted to 55 mph at Denver International Airport.<\/p>\n

In 2002\u2026heavy thunderstorm rainfall caused flash flooding in the Hayman Fire burn area.\u00a0 South Deckers road\u2026State Highway 126\u2026was closed when 4 feet of water inundated a section of the roadway.\u00a0 The u.s. forest service had to remove 40 truckloads of sediment to reopen the road. Also\u2026heavy debris flow washed out a secondary service road in southwest Douglas County.\u00a0 Hail as large as 3\/4 inch in diameter fell near Bennett.<\/p>\n

In 2011\u2026lightning struck a home in Arapahoe County and caused substantial fire damage. Five people were in the home but no one was injured. There was structural damage to both the interior and exterior of the residence.<\/p>\n

22<\/p>\n

In 1874\u2026a severe thunderstorm during the late afternoon produced 1.36 inches of rainfall in an hour\u2026most of which fell in 20 minutes.\u00a0 There was much damage from flooding of streets and considerable damage to private property. The lightning was brilliant and continuous during the storm.\u00a0 Seven buildings were struck by lightning in the city\u2026in addition to many places where it struck only the ground.\u00a0 A magnificent example of ball lightning was observed.\u00a0 When about 200 feet above the house tops\u2026the ball exploded and broke into 7 or 8 different balls\u2026each about 6 inches in diameter.\u00a0 Upon reaching about 20 feet above the ground\u2026these balls broke into small fragments about 3 inches long and 1\/2 inch wide.\u00a0 A shed situated in an alley about one block away was literally covered with these sparks.\u00a0 After the storm was over\u2026the shed and adjacent area showed no trace of the event.\u00a0 Not the slightest mark could be detected on structures or on the ground.<\/p>\n

In 1879\u2026a terrific electrical storm passed over the city during the afternoon.\u00a0 The lightning display was unusually vivid and the crash of thunder seemed at the very house tops.\u00a0 A few homes and buildings were struck by lightning. A home on Capitol Hill sustained much damage to furniture\u2026 But the residents in another wing of the house were not injured.\u00a0 Lightning struck a fence at the corner of Curtis and Broadway.\u00a0 A lightning bolt stunned a workman and knocked a mason\u2019s trough from his hand.\u00a0 A school was struck but was not damaged.\u00a0 Lightning struck the ground near tenth and Colfax.\u00a0 Rain fell in torrents for a time\u2026but the heaviest was on the outskirts of the city.\u00a0 Rainfall in the city was only 0.30 inch.<\/p>\n

In 1882\u2026lightning struck and killed a man in the northern part of the city.<\/p>\n

In 1895\u2026heavy rainfall of 1.53 inches was measured in downtown Denver.<\/p>\n

In 1931\u2026the high temperature reached 100 degrees in downtown Denver.<\/p>\n

In 1965\u2026lightning struck and killed a boy standing by an automobile near Stapleton International Airport.\u00a0 Scattered heavy showers accompanied by hail and wind occurred across metro Denver.\u00a0 Heavy rain caused some street damage in Commerce City.<\/p>\n

In 1973\u2026minor thunderstorm wind damage was reported in Aurora.<\/p>\n

In 1983\u2026heavy thunderstorms dumped torrential rain and large hail across metro Denver.\u00a0 The most serious problems were caused by heavy rainfall in the foothills\u2026which produced flooding on bear creek.\u00a0 Runoff from 3 inches of rain in 45 minutes at Kittredge caused bear creek to rise 5 feet in 10 minutes at Morrison\u2026washing out two bridges.\u00a0 One bridge collapsed\u2026plunging a fire truck into the water\u2026but the occupants were not injured.\u00a0 The town was evacuated for 2 hours.\u00a0 Evergreen was drenched with 2.61 inches of rain in 30 minutes\u2026which caused street flooding along with power outages.\u00a0 Hail to golf ball size damaged cars.\u00a0 A deck on a house east of Evergreen was washed away.\u00a0 At Idaho Springs\u2026 2 inches of rain fell in 45 minutes.\u00a0 Golden received 3 inches of rain in an hour with 0.80 inch of rain in seven minutes at Littleton.\u00a0 Heavy rain and large hail also fell in the city of Denver and its northern and eastern suburbs\u2026 Causing street flooding.\u00a0 Water was 6 feet deep on one Aurora street.<\/p>\n

In 1991\u2026heavy rains caused extensive flooding across north metro Denver.\u00a0 Ralston creek in Arvada flowed out of its banks.\u00a0 At the intersection of I-25 and I-70\u2026up to 8 feet of water covered the highway.\u00a0 A foot of water covered a stretch of I-70 in northwest Denver.\u00a0 Thunderstorm rainfall totaled only 0.82 inch at Stapleton International Airport.<\/p>\n

In 1998\u2026lightning sparked a fire which caused extensive damage to a home in Englewood.\u00a0 Most of the second floor was destroyed.<\/p>\n

In 2004\u2026severe thunderstorms produced hail to 1.25 inches in diameter in Commerce City and near Brighton.<\/p>\n

22-23<\/p>\n

In 1991\u2026heavy rains over the palmer divide and along the Front Range caused the South Platte River to flood from near Henderson to Fort Lupton.\u00a0 The river was out of its banks at several locations with water covering the roads through the night.\u00a0 Only minor damage was reported.<\/p>\n

23<\/p>\n

In 1901\u2026the temperature climbed to a high of 90 degrees\u2026 Marking the 18th consecutive day with a high temperature of 90 degrees or more.\u00a0 This equaled the record of 18 consecutive days set from July 1st through July 18th in 1874.<\/p>\n

In 1910\u2026the temperature climbed to a high of 101 degrees in downtown Denver.<\/p>\n

In 1936\u2026the high temperature reached 100 degrees in downtown Denver.<\/p>\n

In 1957\u2026a tornado was observed by national weather service personnel 25 miles east-northeast of Stapleton Airport for 7 minutes.\u00a0 No property damage or injuries were reported. The public reported a funnel cloud 10 miles northeast of Brighton.<\/p>\n

In 1960\u2026lightning struck many locations across metro Denver. A Boy Scout leader was struck and injured at the Rocky Mountain Arsenal.\u00a0 Some sections of Arvada were blanketed with a white layer of hailstones.\u00a0 A number of weed fires were started by lightning.\u00a0 Some houses were struck\u2026but no serious damage occurred.\u00a0 Heavy rain fell from northwest Denver to Brighton with up to 1.50 inches in some areas.<\/p>\n

In 1965\u2026heavy rain flooded and damaged homes in Georgetown\u2026 Where the sewer system was damaged and the water supply contaminated.\u00a0 Heavy rains in Aurora washed out earthen bridges over sand creek.\u00a0 Streets were flooded in Denver. Several highways were washed out to the east and southeast of Denver.<\/p>\n

In 1975\u2026heavy rains caused flash flooding in the foothills west of Denver.\u00a0 Several roads and businesses were damaged in the central city and Blackhawk areas.<\/p>\n

In 1983\u2026heavy thunderstorms blasted Denver and areas to the south.\u00a0 Douglas County was hardest hit.\u00a0 Golf ball size hail fell in and near Parker.\u00a0 Many homes at the Pinery south of Parker had windows broken and paint stripped by the storm with some vehicles dented by the large stones.\u00a0 In Parker\u2026 1.90 inches of rain fell in just 30 minutes.\u00a0 Many roads in Douglas County were washed out\u2026and at least one bridge was damaged.\u00a0 Up to 2 inches of rain fell in Lakewood\u2026and Littleton was drenched by 1.60 inches in 15 minutes.\u00a0 A department store in Lakewood suffered water damage when a pipe handling runoff broke\u2026sending 4 inches of water onto the floor of the store.<\/p>\n

In 1990\u2026a thunderstorm wind gust to 53 mph was recorded at Stapleton International Airport\u2026where 1\/8 inch diameter hail fell.<\/p>\n

In 1992\u2026heavy thunderstorm rains caused Howard Gulch in southeast Denver to flow over its banks.\u00a0 A weather spotter recorded thunderstorm wind gusts to 63 mph in Aurora. Another spotter measured a wind gust to 60 mph\u2026which toppled a large tree.\u00a0 Thunderstorm winds gusted to only 41 mph at Stapleton International Airport.<\/p>\n

In 1996\u2026hail\u2026as large as an inch in diameter\u2026fell 5 miles west of Castle Rock.<\/p>\n

In 1997\u2026damaging thunderstorm winds associated with a wet microburst ripped the roof off a barn near Brighton\u2026 Causing the east side of the structure to collapse.\u00a0 The roof of a nearby utility shed was also lifted off and blown 60 feet away.\u00a0 West winds gusted to 38 mph at Denver International Airport.<\/p>\n

In 2001\u2026a severe thunderstorm pelted Littleton with hail as large as 1 1\/2 inches.\u00a0 Total damage to vehicles\u2026roofs\u2026 Buildings\u2026and landscaping totaled over 600 thousand dollars.\u00a0 Rain leaked into offices\u2026damaging computers. Almost every vehicle parked in the Littleton center lot sustained some hail damage.\u00a0 Thunderstorm winds gusted to 55 mph at Denver International Airport.<\/p>\n

In 2002\u2026a small tornado briefly touched down near Bennett. No damage was reported.<\/p>\n

In 2004\u2026heavy thunderstorm rainfall in the overland fire burn area caused flash flooding in Jamestown.\u00a0 Up to a foot of water reportedly covered the highway near Jamestown. Many of the town\u2019s culverts filled with dirt and debris\u2026 Causing the overflow to wash onto streets and into homes. Heavy machinery had to be used to remove piles of mud up to 7 feet deep.\u00a0 Parked cars slid down the street with the mud and water\u2026and many had to be dug out.\u00a0 The fire station in Jamestown was inundated with 10 inches of muddy water.\u00a0 Heavy thunderstorm rainfall caused street flooding in federal heights and Thornton.\u00a0 Several streets were inundated with 2 to 4 feet of water\u2026including 84th avenue and grant street\u2026Conifer Street and Huron Blvd\u2026. 102nd Ave. and Melody\u2026as well as 83rd Ave. and Washington. Several cars were stranded in the flood waters.\u00a0 Heavy rainfall also caused street flooding in parts of Westminster. Water reportedly flowed into car windows just north of 104th avenue and U.S. Highway 36.\u00a0 Sections of two roads had to be closed due to flooding.\u00a0 Heavy thunderstorm rainfall of up to 2 inches in 45 minutes caused flash flooding just east of Aurora.\u00a0 Floodwaters ranging from 2 to 3 feet deep forced the closure of Powhaten\u2026Gun Club and Picadilly roads. Lightning caused power outages in parts of Arvada.\u00a0 About 9800 customers were without power for up to 90 minutes.<\/p>\n

24<\/p>\n

In 1896\u2026heavy cloudbursts in the foothills west of Denver caused flash flooding on bear creek\u2026clear creek\u2026Golden gate gulch\u2026and mount vernon creek\u2026resulting in a total of 27 deaths.\u00a0 The downpour dislodged large Boulders\u2026one of which crushed a house.\u00a0 The heavy rain also caused a dam on cub creek to wash out\u2026adding even more water to the flood. A wall of water as high as 10 feet flooded Evergreen and passed down bear creek\u2026washing away many structures along the way.\u00a0 The flood crest produced 3 feet of water in downtown Morrison during the early evening.\u00a0 Flash flooding on Mount Vernon Creek added to the flooding in Morrison. In Golden\u2026the flooding washed out bridges on clear creek and on Cresman and tucker gulches and forced the closure of the power plant.\u00a0 In Denver\u2026a thunderstorm produced hail of unknown size during the afternoon and rainfall of 1.23 inches overnight.<\/p>\n

In 1958\u2026a thunderstorm wind gust to 52 mph was recorded at Stapleton Airport.<\/p>\n

In 1965\u2026heavy rain caused flooding on clear creek and tucker gulch in Golden and west Denver.\u00a0 Damage in Golden was estimated at 80 thousand dollars.\u00a0 Heavy rain south of Denver washed out temporary earthen bridges constructed following the June floods in Castle Rock\u2026Littleton\u2026 Englewood\u2026and Denver.\u00a0 Bear creek in south Denver reached flood stage.\u00a0 A cloudburst on Cub Creek in Evergreen washed out bridges and roads.\u00a0 Heavy rain fell over all the Denver and Aurora areas\u2026causing some flooding of roads\u2026streets\u2026 And bridges.\u00a0 A man drowned in a flooded irrigation canal near Hudson.\u00a0 Heavy rain caused flooding of streets and roads in Blackhawk and central city.\u00a0 Hail caused minor damage in Idaho Springs.<\/p>\n

In 1967\u2026seven bridges were washed out along a normally dry creek bed south of State Highway 7 west of Brighton.\u00a0 One car was washed into the creek when a bridge gave way.<\/p>\n

In 1970\u2026hail stones to 1 1\/4 inches in diameter fell in the foothills of Jefferson County southwest of Denver.<\/p>\n

In 1971\u2026golf ball size hail was reported in foothill areas of Jefferson County west of Denver.\u00a0 A funnel cloud was sighted in Aurora.\u00a0 Wind gusts estimated at 60 mph\u2026hail\u2026 And heavy rain up to an inch in 15 minutes caused local flooding and some other damage in several areas of metro Denver.\u00a0 Hailstones to 3\/4 inch in diameter fell 7 miles southeast of Denver.<\/p>\n

In 1973\u2026a thunderstorm wind gust to 52 mph was recorded at Stapleton International Airport where one inch diameter hail was measured.<\/p>\n

In 1981\u2026strong winds downed a power line in northeast Denver. Wind gusts to 50 mph were recorded at Chatfield Reservoir.<\/p>\n

In 1987\u20263\/4 inch diameter hail fell 5 miles northeast of Commerce City.<\/p>\n

In 1996\u2026hail\u2026up to 1 3\/4 inches in diameter\u2026fell at Chatfield Reservoir.\u00a0 Hail to 3\/4 inch in diameter was measured near Bennett.<\/p>\n

In 2000\u2026lightning struck near two golfers at Ute Creek Golf Course near Longmont\u2026knocking them to the ground.\u00a0 The men received only minor injuries.<\/p>\n

In 2001\u2026lightning from a thunderstorm knocked out electrical power to about 1500 residents in the city of Denver.<\/p>\n

In 2004\u2026a chilly day with fog and thunderstorms resulted in two temperature records.\u00a0 The low temperature of 49 degrees was a record minimum for the date.\u00a0 The high temperature of only 58 degrees was a record low maximum for the date.<\/p>\n

In 2016…severe thunderstorms produced damaging straight-line. A storm leveled a greenhouse and caused tree damage near Byers. A peak wind gust to 74 mph was measured at Denver International Airport.<\/p>\n

24-25<\/p>\n

In 2003\u2026maximum temperature of 100 degrees on the 24th was a record high for the date.\u00a0 Low temperature of 73 degrees on the 25th was a record high minimum for the date.<\/p>\n

25<\/p>\n

In 1875\u2026brief heavy rain and hail lasted only 5 minutes\u2026 But the 1\/4 inch diameter hail covered the ground to a depth of 1\/2 inch and made the streets look like there had been snowfall.\u00a0 There was much crop damage\u2026especially to corn\u2026and some sheep were killed.\u00a0 Precipitation totaled 0.51 inch in the city.<\/p>\n

In 1896\u2026a heavy thunderstorm produced sustained northwest winds to 45 mph with gusts to 50 mph and 1.02 inches of rain.<\/p>\n

In 1965\u2026a cloudburst dumped 1.99 inches of rain in 30 minutes at Stapleton International Airport.\u00a0 The storm was accompanied by strong winds gusting to 70 mph.\u00a0 The heavy rain flooded numerous streets in east Denver and Aurora. One inch diameter hail accompanied a cloudburst\u20269 miles southwest of Denver.\u00a0 A funnel cloud was sighted 25 miles northwest of Denver.\u00a0 In Aurora\u2026there were unofficial reports of 2.30 inches of rain in 40 minutes and 3.30 inches of rain in 30 to 40 minutes.\u00a0 Rainfall totaled 2.05 inches at Stapleton International Airport.\u00a0 Rainfall of 2.42 inches for 24 hours on the 24th and 25th was the second greatest on record for July.<\/p>\n

In 1977\u2026a tornado touched down briefly in Aurora southeast of Cheery Creek Reservoir.\u00a0 No damage was reported. A funnel cloud was sighted for 4 minutes by national weather service personnel 10 miles north of Stapleton International Airport near Henderson.<\/p>\n

In 1991\u2026heavy rain\u2026up to half an inch in 10 minutes\u2026caused flooding in Westminster\u2026Northglenn\u2026and north Denver where a section of railroad track was washed away.\u00a0 At Stapleton International Airport\u2026heavy thunderstorm rain totaled 1.85 inches and briefly reduced the visibility to 1\/4 mile. Hail to 1\/8 inch in diameter was also measured.\u00a0 A tornado touched down briefly near Fort Lupton.\u00a0 No damage was reported.<\/p>\n

In 1998\u2026heavy monsoonal thunderstorm rains caused flooding and flash flooding in eastern and southern sections of metro Denver\u2026including Englewood and Aurora\u2026when about 2 to 3 inches of rain inundated the area.\u00a0 Both I-25 and I-70 were closed for 2 to 3 hours as several low lying areas became impassable due to the high waters.\u00a0 The water was estimated to be 15 feet deep in one flooded underpass along I-25.\u00a0 As a result\u2026the freeway was closed from south of 6th avenue to university Blvd.\u00a0 Standing water forced the closure of I-70 at gun club road east of Denver.\u00a0 In Englewood\u2026U.S. Highway 285 was closed\u2026when high water made it impassable.\u00a0 Several cars were reportedly floating down the roadway near Sheridan Blvd.\u00a0 In Aurora\u2026the intersection at Yale Ave. and Chambers Rd. was flooded by high water up to 4 feet deep when a spillway on the high line canal was breached.\u00a0 Lightning also knocked out 11 transformers across metro Denver\u2026causing several small fires and scattered power outages.\u00a0 Flood and flash flooding also occurred north of Strasburg when as much as 2.51 inches of rain fell in an hour.\u00a0 The deluge resulted in considerable flooding of local streets and County roads.\u00a0 Torrential rainfall of 2 to 3 inches in less than an hour triggered a flash flood in Virginia Canyon.\u00a0 County road 279 between Idaho Springs and Central City was closed for two days to clear debris from mudslides.\u00a0 Several cars in Idaho Springs were washed off the road\u2026and numerous basements were flooded in town.\u00a0 Thunderstorm rainfall totaled 2.69 inches at Denver International Airport.<\/p>\n

In 2001\u2026lightning struck two homes in Lafayette\u2026damaging the roof and attic of one and shorting out the electrical system in another.\u00a0 Hail to 1 3\/4 inch in diameter was measured 7 miles north of Castle Rock with 3\/4 inch hail 7 miles north of Sedalia.<\/p>\n

In 2005\u2026heavy thunderstorm rain in the vicinity of the overland wildfire burn scar triggered a mudslide in Jamestown.\u00a0 Rocks the size of bowling balls\u2026along with silt and mud slid down the mountain into the town.\u00a0 No one was injured.\u00a0 One parked car was buried by the debris.<\/p>\n

In 2006\u2026heavy thunderstorm rainfall caused flash flooding 1 mile north of the town of Westcreek in southwestern Douglas County.\u00a0 Several maintenance roads were washed out by the floodwaters.<\/p>\n","protected":false},"excerpt":{"rendered":"

This week in weather history we really begin to see the arrival of monsoon season and the heavy rains and flooding it can bring to the Thornton and Denver area.\u00a0 Be sure to check out the events on the 23rd and what the heavy rain brought to the Thornton area in 2004. 1-31 In 2012\u2026it … Continue reading July 19 to July 25: 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\/20817"}],"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=20817"}],"version-history":[{"count":1,"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/posts\/20817\/revisions"}],"predecessor-version":[{"id":20818,"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/posts\/20817\/revisions\/20818"}],"wp:attachment":[{"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/media?parent=20817"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/categories?post=20817"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/tags?post=20817"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}