{"id":18803,"date":"2018-07-01T18:04:41","date_gmt":"2018-07-02T00:04:41","guid":{"rendered":"http:\/\/www.thorntonweather.com\/blog\/?p=18803"},"modified":"2018-07-08T03:40:49","modified_gmt":"2018-07-08T09:40:49","slug":"july-1-to-july-7-this-week-in-denver-weather-history-2","status":"publish","type":"post","link":"https:\/\/www.thorntonweather.com\/blog\/weather-history\/july-1-to-july-7-this-week-in-denver-weather-history-2\/","title":{"rendered":"July 1 to July 7: This week in Denver weather history"},"content":{"rendered":"
\"This<\/a>
July 1 to July 7: This week in Denver weather history<\/figcaption><\/figure>\n

In our\u00a0July weather preview<\/a>\u00a0we discussed how the month is not only Denver\u2019s hottest but also its stormiest. Our look back at this week in Denver weather history helps to illustrate that fact. We start seeing 100+ degree days as well as many of the types of fast moving thunderstorm events expected this time of year.<\/p>\n

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

29-2<\/p>\n

In 1990\u2026almost a year to date after the record breaking heat in early July 1989\u2026the third longest heat wave in Denver history started. From June 29th through July 2nd the temperature reached 100 degrees or more on four consecutive days. The highest reading of 102 degrees occurred on the 29th\u202630th\u2026and 1st. Combined with the 102 degree reading on June 27th this would have been the longest heat wave on record\u2026but the temperature climbed to only 98 degrees on June 28th.<\/p>\n

29-15<\/p>\n

In 2000\u2026the 29th marked the beginning of a near record hot streak for metro Denver. The high temperatures\u2026as recorded at Denver International Airport\u2026exceeded the 90 degree mark for 17 consecutive days from June 29th through July 15th. The record of 24 consecutive 90 degree or above days was set from July 13th through August 5th\u20262008.<\/p>\n

30-1<\/p>\n

In 1873\u2026heavy rainfall overnight totaled 1.42 inches. Mountain peaks to the southwest of the city were covered with fresh snow on the morning of the 1st.<\/p>\n

1<\/p>\n

In 1915\u2026northeast winds sustained to 41 mph with gusts to 50 mph occurred just before a thundershower in the evening. Rainfall was only 0.07 inch.<\/p>\n

In 1941\u2026unusually heavy thunderstorm rains flooded basements and blocked traffic. Water was curb high on many downtown streets. The thunderstorm also pelted the city with hail of unknown size. Rainfall in downtown Denver totaled 0.72 inch\u2026but greater amounts likely occurred in other parts of the city.<\/p>\n

In 1960\u2026a severe dust devil moving through an Adams County suburban area blew over a fireworks stand\u2026injuring an 11- year-old boy customer and two women operators of the stand. The boy was found under the demolished stand 100 feet away.<\/p>\n

In 1961\u2026hail as large as 1 1\/4 inches in diameter was reported over east Denver.<\/p>\n

In 1967\u2026golf ball size hail fell over portions of metro Denver. Hail stones to 2 inches in diameter damaged roofs and broke windows in northeast Boulder. Marble to golf ball size hail fell at the Boulder airport. A funnel cloud was sighted over the foothills near Boulder. Hail stones of 1 to 2 inches in diameter were measured at Jefferson County Airport near Broomfield. Marble size hail fell in the vicinity of Arvada and Westminster.<\/p>\n

In 1982\u2026severe thunderstorms dropped large hail in Denver\u2026 Boulder\u2026Commerce City\u2026Lakewood\u2026Wheat Ridge\u2026Golden\u2026and Arvada. Most locations reported hail size from 3\/4 to 1 1\/4 inches in diameter.<\/p>\n

In 1990\u2026the high temperature reached 102 degrees at Stapleton International Airport.<\/p>\n

In 1998\u2026hail to 1 1\/2 inches in diameter fell near Bennett.<\/p>\n

In 2001\u2026the temperature climbed to a high of 101 degrees at Denver International Airport.<\/p>\n

In 2016…a severe thunderstorm produced large hail in Castle Rock…ranging in size from 1 to 2 inches in diameter. The hail pummeled neighborhoods as it smashed cars and shattered windows. The storm caused extensive damage to\u00a0shutters…roofs…siding and fencing.<\/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

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

2<\/p>\n

In 1879\u2026a severe hail storm produced considerable damage in the vicinity of Arvada. Some of the stones were unusually large\u2026measuring 6.5 inches in circumference (2 inches in diameter) with an average weight of 1 ounce. The stones were uniformly large with one side concave. The greatest damage was to early wheat\u2026cabbage\u2026and vines. A tree just to the south of the weather station in downtown Denver was struck by lightning. Residents in the house 15 feet away were affected by the strike.<\/p>\n

In 1885\u2026thunderstorm winds were sustained to 50 mph in the city.<\/p>\n

In 1892\u2026an apparent cold front produced sustained northeast winds to 40 mph with gusts to 45 mph.<\/p>\n

In 1955\u2026a apparent microburst wind gust to 69 mph was recorded at Stapleton Airport where the brief strong wind reduced the visibility to zero in blowing dust.<\/p>\n

In 1965\u2026hail\u2026up to 2 inches in diameter\u2026struck southwest Adams and northeast Denver counties\u2026damaging cars\u2026windows\u2026 And foliage. Hail accumulated up to a foot deep. Wind gusts to 48 mph and hail to 1 inch in diameter fell at Stapleton International Airport where the large hail broke three storm windows and shredded shrubs at the U.S. Weather Bureau Upper Air building.<\/p>\n

In 1968\u2026a pilot reported a tornado 10 miles southeast of Parker.<\/p>\n

In 1971\u2026one inch diameter hail stones were reported in Adams County about 30 miles east of Denver.<\/p>\n

In 1987\u2026a large tornado touched down 10 miles northeast of Stapleton International Airport. The tornado was vertical and thick and kicked up a large dust and debris cloud. Later\u2026it developed a sinuous rope-like shape as it slowly dissipated. The tornado was visible for 15 minutes. The twister occurred in open country and did only minor damage to a metal shed\u2026porch\u2026and mailbox. A man was killed by lightning in southwest Aurora. He was in his backyard and had a shovel in his hand at the time of the strike. A group of soccer players were hit by lightning on a field in Boulder. A 10-year-old boy was critically injured and hospitalized; fortunately he recovered. Six other people were knocked to the ground by the strike. Two of these were slightly injured. Golf ball size hail fell just east of Littleton and at Highlands Ranch. Hail as large as 3\/4 inch in diameter was reported in Aurora and Parker and near Hudson and Franktown.<\/p>\n

In 1988\u2026a 45-year-old man was injured by lightning at Cheery Creek Reservoir. Administration of CPR probably saved his life.<\/p>\n

In 1990\u2026the temperature reached a high of 100 degrees at Stapleton International Airport.<\/p>\n

In 1993\u2026thunderstorm winds blew a roof off a barn near Parker\u2026causing an estimated 15 hundred dollars damage.<\/p>\n

In 1994\u2026thunderstorm winds downed power lines in Boulder\u2026 Causing power outages. Winds gusted to 66 mph in Boulder\u2026 64 mph in Arvada\u2026and 60 mph in Golden.<\/p>\n

In 1998\u2026a small tornado touched down briefly near Barr Lake\u2026 But caused no damage.<\/p>\n

In 2002\u2026hail as large as 1 3\/4 inches in diameter fell in the city of Denver and in Arapahoe County near Littleton. The low temperature of 69 degrees equaled the record high minimum for the date.<\/p>\n

In 2006\u2026lightning struck a teenager in Castle Rock as he was mowing his lawn and listening to an iPod. The teen suffered burns to his hands and feet\u2026and had blood running from his ears when he was found. The victim\u2019s eardrums were ruptured\u2026which damaged his hearing. Lightning also struck a house in Castle Rock causing extensive damage to the roof and side of the home. Heavy rains caused flash flooding at Castlewood Canyon State Park near Franktown. The floodwaters destroyed four footbridges along the high trail. A culvert and several roads were washed out in the area. In addition\u2026 Two driveways crossing Cherry Creek were washed out near Prairie Canyon Ranch. Heavy rainfall also caused minor flooding on murphy and sand creeks\u2026just east of Buckley AFB. Gun Club Road was closed between Alameda and Mississippi avenues\u2026north of the Murphy Creek Golf Course\u2026where 3 feet of standing water reportedly covered the road. A severe thunderstorm produced large hail to 7\/8 inch in diameter in south Aurora near Cherry Creek.<\/p>\n

In 2016…a weak landspout touched down briefly in and open\u00a0field near Bennett.<\/p>\n

3<\/p>\n

In 1874\u2026the temperature climbed to a high of 101 degrees in downtown Denver.<\/p>\n

In 1881\u2026the all time highest recorded daily minimum temperature of 77 degrees occurred in the city. This was also the highest daily minimum temperature ever recorded in July.<\/p>\n

In 1885\u2026a severe thunderstorm produced hail the size of hazel nuts\u2026which fell with great force. A telegraph pole in west Denver was struck by lightning and shattered to pieces.<\/p>\n

In 1955\u2026a brief microburst wind gust to 61 mph was recorded at Stapleton Airport.<\/p>\n

In 1960\u2026a major hail storm caused 1.5 million dollars in damage across metro Denver. The heaviest damage occurred in south Denver\u2026Englewood\u2026Littleton\u2026and Golden from wind- driven hail as large as golf balls and heavy rain which caused flooding. Winds were estimated at 60 to 70 mph. Rainfall was estimated at 2 to 3 inches. Hail accumulated 3 to 4 inches deep in some sections. Hail carried by flood waters drifted 3 to 4 feet deep. An Englewood policeman was injured when hail broke the windshield of his car. One inch of rain in 10 minutes\u2026and heavy hail damage were reported in Parker. At some places the hail from the storm was still on the ground the next morning.<\/p>\n

In 1967\u2026large hail stones from 1 3\/4 to 2 1\/2 inches in diameter damaged cars and buildings in southwest Denver and Littleton where hail drifted to depths of 3 to 4 feet. The hail caused a great deal of damage\u2026and streets were flooded by heavy rain over many sections of west metro Denver. At centennial race track near Littleton\u2026a few hail stones were as large as tennis balls. Large hail broke the windshield on a Littleton police car. Golf ball to tennis ball size hail fell in the vicinity of Arapahoe road and south Broadway. One inch diameter hail fell at the intersection of orchard and south university. Golf ball size hail fell in Broomfield. Hail in Westminster was measured from 1 to 1 1\/4 inches in diameter. Tornadoes were sighted by the public near Cheery Creek Reservoir\u2026 north of Commerce City\u2026and in Arvada\u2026but caused no reportable damage.<\/p>\n

In 1993\u2026high winds developed behind a strong cold front along portions of the Front Range. While the strongest winds were reported north of metro Denver\u2026the winds blew out a half inch thick pane of glass from a vacant 9-story building. The glass landed on a parked car below. West winds gusting to 52 mph kicked up some blowing dust at Stapleton International Airport.<\/p>\n

In 1996\u2026lightning sparked a small fire near buffalo creek in southern Jefferson County. Only one acre burned before the fire was contained.<\/p>\n

In 2002\u2026heavy thunderstorm rain washed out a frontage road 6 miles north of Larkspur. The nearby mountain ranch subdivision was also flooded. Heavy rainfall in the Hayman fire burn area washed out a secondary road when debris from the runoff blocked a culvert. Hail as large as 3\/4 inch fell near Keenesburg\u2026in Castle Rock\u2026and 7 miles to the south of Castle Rock.<\/p>\n

In 2005\u2026severe thunderstorms produced high winds. Wind gusts to 75 mph were measured near Longmont and to 60 mph just west of Boulder. No damage was reported.<\/p>\n

In 2007\u2026severe thunderstorms produced large hail in the foothills and suburbs west of Denver. Large hail from 1 to 2 inches in diameter was reported in the vicinity of Idaho Springs\u2026Rollins and Edgewater.<\/p>\n

In 2009\u2026severe thunderstorms produced large hail and north and east of Denver. Hail up to one inch in diameter was observed near Erie and firestone. Hail up to 1 3\/4 inches was observed 5 to 6 miles west-southwest of Byers. The golfball size hail caused extensive damage to a wheat field. In Aurora\u2026six children received minor injuries when lightning struck a nearby tree. The injuries occurred when they were knocked down by the blast. None of the children suffered burns or appeared to have been directly hit by lightning.<\/p>\n

In 2014\u2026a severe thunderstorm produced large\u2026 up to 1 \u00bd inches in diameter\u2026about 14 miles northwest of Golden.<\/p>\n

<\/span>4<\/span><\/p>\n

In 1874\u2026the temperature reached a high of 102 degrees in downtown Denver. Large forest fires in the mountains from the west-northwest to the south filled the atmosphere over the city with dense smoke.<\/p>\n

In 1885\u2026a thunderstorm produced sustained winds to 44 mph with gusts to 60 mph. A circus tent was tattered by the strong winds.<\/p>\n

In 1900\u2026a thunderstorm produced northwest winds sustained to 42 mph with gusts to 51 mph\u2026but only 0.05 inch of rain.<\/p>\n

In 1903\u2026the all time lowest temperature ever recorded in July\u202642 degrees\u2026occurred. The temperature also occurred on July 31\u20261873.<\/p>\n

In 1910\u2026thunderstorm winds were sustained to 42 mph from the southwest.<\/p>\n

In 1922\u2026thunderstorm winds were sustained to 37 mph with gusts to 48 mph.<\/p>\n

In 1956\u2026a thunderstorm wind gust to 54 mph was recorded at Stapleton Airport.<\/p>\n

In 1964\u2026several men were knocked down by a bolt of lightning while playing golf in south metro Denver. They got up and ran for cover when one of them was struck by a second bolt. He suffered burns and shock.<\/p>\n

In 1987\u2026a weak tornado was observed for 6 minutes\u20267 miles northeast of Watkins. Hail 3\/4 to 1 1\/4 inches in diameter fell in southeast Aurora.<\/p>\n

In 1988\u2026lightning struck a group of people at the Jefferson County fairgrounds. A 42-year-old woman was seriously injured and was hospitalized for 3 days. Four other people sustained minor injuries.<\/p>\n

In 1993\u2026strong northwest winds uprooted several trees across metro Denver. Wind gusts to 64 mph were reported at Erie north of Denver. A west wind gust to 43 mph was recorded at Stapleton International Airport.<\/p>\n

In 1995\u2026lightning struck and injured two people standing in a field in Arvada.<\/p>\n

In 1998\u2026heavy thunderstorm rain\u2026up to 2.75 inches\u2026and marble size hail combined to flood local roads and fields near Roggen.<\/p>\n

In 2002\u2026heavy thunderstorm rain in the Hayman fire burn area caused flash flooding. In Jefferson County\u2026Gulch Road was washed out. In Douglas County\u2026high water washed out some forest access roads as well\u2026generally to the east of a line extending from signal butte to Deckers.<\/p>\n

In 2010\u2026intense thunderstorms produced torrential rainfall\u2026 In excess of 5 inches in one hour\u2026and caused flash flooding in the vicinity of Elizabeth. Numerous County roads were washed out. The combination of heavy rain and hail made it necessary to run snow plows through town. Extensive basement flooding was also reported. Severe thunderstorms produced large hail from Aurora south to Elizabeth and Larkspur. The hail size ranged from 1 to 2 inches in diameter. A wet microburst produced 1.84 inches of rainfall at Denver International Airport. A peak wind gust to 48 mph was also observed from the northeast.<\/p>\n

In 2017…a microburst produced a wind gust to 61 mph…about 13 miles east-northeast of Denver International Airport.<\/p>\n

4-5<\/p>\n

In 1875\u2026nearly every railroad running into the city was damaged by heavy thunderstorm rains. The heavy rains washed out wooden bridges over normally dry creeks. Some trains were entirely suspended. In the city\u2026heavy thunderstorm rain totaled 1.05 inches on the 4th\u2026but only 0.28 inch on the 5th.<\/p>\n

4-8<\/p>\n

In 1989\u2026one of the most intense heat waves on record roasted metro Denver. The temperature reached 100 degrees or more on 5 consecutive days. The city had previously never recorded more than 2 straight 100-degree days since records began in 1872. Water and electricity usage reached all time highs. The heat wave created extremely dry weather conditions\u2026which contributed to a major forest fire in Boulder canyon on July 9th. The temperature reached 103 degrees on the 8th\u2026and the mercury climbed to 101 degrees on both the 4th and 5th\u2026and to 102 degrees on both the 6th and 7th. The low temperature of 68 degrees on the 8th equaled the record high minimum for the date.<\/p>\n

<\/span>5<\/p>\n

In 1908\u2026a late evening thunderstorm produced sustained north winds to 40 mph\u2026hail\u2026and 0.45 inch of precipitation.<\/p>\n

In 1949\u2026a dust devil\u2026possibly a small tornado\u2026was observed 3 miles to the northwest of Stapleton Airport.<\/p>\n

In 1973\u2026the temperature reached 100 degrees at Stapleton International Airport.<\/p>\n

In 1974\u2026strong thunderstorm winds damaged a mobile home\u2026a barn\u2026two houses\u2026and several sheds near Watkins.<\/p>\n

In 1975\u2026a thunderstorm wind gust to 53 mph was recorded at Stapleton International Airport. Hail up to 3\/4 inch in diameter fell over the northwest suburbs and in northwest Denver.<\/p>\n

In 1977 three houses in Denver were struck by lightning. Some heavy damage and fire occurred.<\/p>\n

In 1990\u2026lightning caused minor damage to houses in Castle Rock\u2026Louviers\u2026and Littleton.<\/p>\n

In 1996\u2026lightning caused only minor damage when it struck a home in Evergreen. Lightning from a fast moving thunderstorm blasted a large hole in the side of a house in Lakewood. Lightning triggered a minor power outage in the Boulder area. About 200 homes were affected.<\/p>\n

In 2001\u2026severe thunderstorm winds gusted to 60 mph at Denver International Airport and to 70 mph\u20267 miles southwest of the airport.<\/p>\n

In 2008\u2026microburst winds downed a large tree and some power lines near a Denver apartment complex. Several of the tenants\u2019 vehicles were damaged.<\/p>\n

In 2009\u2026a wet microburst produced very strong winds in and just east of Denver. A peak wind gust of 69 mph was measured 1.5 miles east of Denver. In addition\u20261.50 inches of rain fell in 30 minutes. A peak wind gust to 68 mph was also observed near Byers. Southwest winds gusted to 31 mph at Denver International Airport. The airport also received 0.30 inches of rainfall.<\/p>\n

6<\/p>\n

In 1876\u2026the high temperature reached 101 degrees in downtown Denver.<\/p>\n

In 1943\u2026four people were injured by lightning in Denver during a severe early evening thunderstorm. At least two houses were set on fire by the lightning. One house had $1500 in damage and the other $1000.<\/p>\n

In 1959\u2026wind and lightning caused some damage in metro Denver. Wind gusts to 67 mph blew down power lines\u2026signs\u2026 And trees. Lightning struck several transformers\u2026leaving many areas without power.<\/p>\n

In 1971\u2026a microburst wind gust to 68 mph was recorded at Stapleton International Airport.<\/p>\n

In 1973\u2026the temperature reached a high of 103 degrees. This was the second consecutive day with a temperature of 100 degrees or more.<\/p>\n

In 1984\u2026a weak tornado moved through eastern Aurora. About 10 homes sustained minor damage to roofs; some sections of fence were thrown more than a block. Soft hail\u2026an inch in diameter\u2026fell over central Aurora\u2026and 1.35 inches of rain fell in just 45 minutes\u20265 miles east of Buckley Field. Torrential rain and hail stopped traffic on I-225 in central Aurora for 15 minutes. Street flooding was widespread. A wind gust to 57 mph was recorded in southeast Aurora. A wind gust to 66 mph was reported at Front Range airport near Bennett. Northwest winds gusted to 44 mph at Stapleton International Airport where only 1\/8 inch hail fell.<\/p>\n

In 1986\u2026one inch diameter hail fell near conifer in the foothills west of Denver. The storm produced 1.50 inches of rain in an hour with a storm total of 2.15 inches. Nearby buffalo creek was drenched with 0.80 inch of rain in just 10 minutes.<\/p>\n

In 1996\u20263\/4 inch diameter hail fell in Bennett\u2026east of Denver. Hail\u2026as large as 1 1\/2 inches in diameter\u2026 Damaged several vehicles in the parking lot of the Colorado speedway race track near Dacono north of Denver. Several trees were also damaged.<\/p>\n

In 2001\u2026a severe thunderstorm wind gust to 59 mph was recorded at Denver International Airport\u2026along with small hail.<\/p>\n

In 2009\u2026hail up to 1 inch in diameter was observed near Longmont.<\/p>\n

In 2010\u2026heavy rain caused flash flooding near interstate 70 at the Byers exit. Two feet of water was observed moving across the bottom of exit ramp. One car was washed into a tree but no one was injured. In addition\u2026severe thunderstorms produced hail up to 1 1\/2 inches in diameter near Franktown. At Denver International Airport\u2026only 0.01 inches of rainfall was observed. A peak wind gust to 45 mph from the west was also recorded.<\/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<\/p>\n

In 1905\u2026a thunderstorm produced sustained northeast winds to 40 mph\u2026but only a trace of rain.<\/p>\n

In 1933\u2026heavy cloudbursts during the afternoon in the Idledale area and on saw mill gulch caused flash flooding on bear creek resulting in 7 deaths. Flooding in Morrison was compounded when a wall of water as high as 15 feet swept down Mount Vernon Creek. The flooding caused extensive damage to the bear creek canyon highway.<\/p>\n

In 1959\u2026wind gusts to 45 mph at Stapleton Airport\u2026but higher in other areas\u2026damaged power lines and buildings and caused widespread minor damage from falling trees and broken limbs. A field house under construction at Adams County high school in Commerce City sustained severe damage.<\/p>\n

In 1963\u2026farm buildings east of Boulder were possibly damaged by a small tornado as there were unconfirmed reports of a funnel cloud in the area.<\/p>\n

In 1967\u2026a storm of cloudburst proportion caused damage from flooding in southwest and south Denver. Unofficial reports indicated rainfall of 2.00 inches in 30 minutes and more than 3.00 inches total from the storm. Streets and buildings were flooded by the heavy run-off. Hail in some areas contributed to flooding by blocking storm drains. Water accumulated 12 to 14 feet deep in several underpasses and some street intersections. A young woman drowned when she tried to cross a flooded street and was swept off her feet and trapped under a parked car. Water reached a depth of 5 feet in the street. Police rescued numerous stranded motorists. The roof and wall of a flat roofed store building collapsed under the weight of deep water on the roof. Cars were washed over curbs in many areas. In southwest metro Denver\u2026100 to 150 homes were flooded. Hail caused damage in other areas of Denver and in Aurora. Wind toppled trees in several areas. Snowplows were called out to clear hail from some highways and runways at Stapleton International Airport. Lightning damaged trees and power lines and started a fire\u2026which extensively damaged an automobile dealership. Thunderstorm rainfall totaled 0.83 inch at Stapleton International Airport.<\/p>\n

In 1981\u2026severe thunderstorms produced 3\/4 inch hail over east Denver. About 1 1\/2 inches of rain fell in Littleton. Thunderstorm winds gusted to 45 mph at Stapleton International Airport.<\/p>\n

In 1983\u2026tennis ball size hail fell about 5 miles north of Boulder; it was soft and caused no damage.<\/p>\n

In 1987\u2026a weak tornado touched down in Castle Rock. Several weak tornadoes were observed in the area. No damage was reported.<\/p>\n

In 1988\u2026lightning struck a sign at a bank near Louisville\u2026 Damaging it and causing a smoldering fire that resulted in smoke damage to the bank and an adjacent building. Heavy thunderstorm rain\u2026accompanied by 1\/2 inch diameter hail at Stapleton International Airport\u2026briefly reduced the visibility to 1\/4 mile. Rainfall totaled 1.41 inches\u2026 But 1.12 inches fell in 32 minutes.<\/p>\n

In 2001\u2026severe thunderstorms dumped large hail across north metro Denver. Hail to 1 3\/4 inches in diameter fell near Erie with 7\/8 inch hail measured in Thornton.<\/p>\n

In 2004\u2026a 9-year-old boy was struck by lightning while at a playground in Arvada. The umpire at a nearby baseball game\u2026along with 2 passers-by\u2026administrated CPR and resuscitated the boy who had quit breathing. The boy suffered first and second degree burns\u2026but was released from the hospital in less than 24 hours. A dry microburst over Denver International Airport produced a peak wind gust to 61 mph.<\/p>\n

In 2006\u2026up to 3 inches of heavy thunderstorm rainfall in the Hayman wildfire burn area produced destructive flash flooding along West Creek between the towns of Deckers and Westcreek in southwest Douglas County. Horse Creek\u2026which drains into west creek\u2026swelled from a normally small creek into a raging torrent\u202625 to 30 feet deep and 300 feet wide. The wall of water damaged or destroyed about 30 sections of a 5 mile stretch of State Highway 67\u2026which parallels West Creek. Several homes were extensively damaged or destroyed. No injuries were reported\u2026but several people had to be rescued\u2026due to extensive damage to access roads and bridges in the area. Reconstruction was estimated at 13.3 million dollars.<\/p>\n

In 2011\u2026Heavy rain associated with a wet microbursts produced\u00a0over 3 inches of rain in 90 minutes across southeast Denver. In Denver\u2026some underpasses were flooded with several feet of water which stranded motorists. As a result\u2026the fire department conducted at least 10 water rescues. Some basements were inundated with up to 4 feet of water which caused extensive flood damage. The Platte Valley and Western Model Railroad Club`s model train display in Union Station was also damaged when 3 to 4 inches of mud and water spilled over some of the command and control systems. Several display modules and scenery pieces in a storage room were also damaged. The entire display spanned more than one thousand feet of track in a room that was once used as the jail at Union Station in the 1900s. Urban and small stream flooding was reported across the surrounding Denver suburbs. The storm left about 28000 Xcel customers without power when the storm snapped trees and power lines. In addition\u2026heavy rain produced flash flooding in the Four Mile Canyon burn scar. Four debris slides occurred along Four Mile Canyon Drive\u2026including one that was 100 yards wide and 4 feet deep. Several rockslides were reported in Lefthand and Boulder Canyons. At Denver International Airport\u20261.04 inches of rain was observed. A peak wind gust of 46 mph from the southeast was also observed.<\/p>\n

In 2014\u2026an Arvada resident was injured by a nearby lightning strike while he recorded a video of a thunderstorm with his cell phone. He was standing in his garage\u2026when a nearby lightning bolt knocked him out. He suffered overall body aches and had a ringing sensation in one of his ears. In Denver\u2026 lightning caused a power outage that affected the RTD light rail lines for a short time. In Castle Pines\u2026lightning sparked a small attic fire. Severe thunderstorms produced large hail\u2026from quarter to golfball size\u2026 and damaging winds across Arapahoe\u2026Boulder and Jefferson Counties including: northwest Arvada\u2026Littleton and Louisville. Flash flooding was reported near Evergreen in central Jefferson County. Heavy rain\u2026up to 2 inches in one hour\u2026 flooded several residences and washed out several bridges along Forest Estate Road. Heavy rainfall also produced street flooding in Denver along with some basement flooding. The strong winds\u2026estimated to 60 mph\u2026 downed trees and power lines in southwest Littleton. At Denver International Airport\u20260.15 inches of rainfall was observed along with a peak wind gust to 42 mph from the southeast.<\/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","protected":false},"excerpt":{"rendered":"

In our\u00a0July weather preview\u00a0we discussed how the month is not only Denver\u2019s hottest but also its stormiest. Our look back at this week in Denver weather history helps to illustrate that fact. We start seeing 100+ degree days as well as many of the types of fast moving thunderstorm events expected this time of year. … Continue reading July 1 to July 7: 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],"_links":{"self":[{"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/posts\/18803"}],"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=18803"}],"version-history":[{"count":2,"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/posts\/18803\/revisions"}],"predecessor-version":[{"id":18805,"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/posts\/18803\/revisions\/18805"}],"wp:attachment":[{"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/media?parent=18803"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/categories?post=18803"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/tags?post=18803"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}