{"id":20803,"date":"2020-07-15T04:51:39","date_gmt":"2020-07-15T10:51:39","guid":{"rendered":"http:\/\/www.thorntonweather.com\/blog\/?p=20803"},"modified":"2020-07-16T05:17:51","modified_gmt":"2020-07-16T11:17:51","slug":"july-12-to-july-18-this-week-in-denver-weather-history-3","status":"publish","type":"post","link":"https:\/\/www.thorntonweather.com\/blog\/weather-history\/july-12-to-july-18-this-week-in-denver-weather-history-3\/","title":{"rendered":"July 12 to July 18: This week in Denver weather history"},"content":{"rendered":"

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

A busy week in Denver weather history for sure.\u00a0 Most notable are the occurences of flooding that seem to happen with regularity as well as the costliest hail storm in American history.<\/p>\n

1-18<\/p>\n

In 1874…a streak of 18 consecutive days of 90 degrees…from the 1st to the 18th…tied for second with another streak that was later set in the summer of 1901. The record of 24 consecutive days was established in the summer of 2008.<\/p>\n

1-31<\/p>\n

In 2012…it 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…which 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…from the 6th to the 23rd…a streak of 18 consecutive days of 90 degrees tied for second with another streak set in the summer of 1874. The record of 24 consecutive days was established in the summer of 2008.<\/p>\n

7-25<\/p>\n

In 1934…a streak of 15 consecutive days of 90 degrees…from the 7th to the 25th…ranked 5th on the list of hot streaks. The record of 24 consecutive days was established in the summer of 2008.<\/p>\n

11-12<\/p>\n

In 1872\u2026heavy rain from 4:00 pm until 2:00 am caused much damage.\u00a0 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.\u00a0 Rainfall was 0.16 inch.<\/p>\n

In 1885\u2026thunderstorms produced widespread lightning across the city during the evening.\u00a0 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.\u00a0 Dime size hail was recorded in the city of Denver.\u00a0 Very heavy rain caused flooding across metro Denver.\u00a0 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.\u00a0 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.\u00a0 Flood waters were a foot deep at the intersection of I-70 and I-25 just north of downtown Denver.\u00a0 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.\u00a0 Two people were killed near the town of buffalo creek when a 20-foot wall of water flooded the area.\u00a0 Utility poles and trees were uprooted; cars\u2026 Propane tanks\u2026and bridges were destroyed in the flood\u2019s path.\u00a0 Entire buildings were moved from their foundations and heavily damaged by the floodwaters.\u00a0 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.\u00a0 The second death occurred farther upstream when a man in a 5th-wheel trailer was washed away.\u00a0 This was the second disaster to strike the area in the last couple of months.\u00a0 The community was already recovering from a wildfire which burned about 12 thousand acres of forest land in late May.\u00a0 With the forest burned by fire\u2026very little vegetation was available to slow the storm\u2019s runoff\u2026which resulted in the flash flood.\u00a0 Power\u2026water\u2026and sewer service were heavily damaged in the flood and\u2026in some cases\u2026beyond repair.\u00a0 The cost of repairing the roads and water system in the area was estimated at around a half million dollars.\u00a0 Elsewhere across metro Denver\u2026severe thunderstorms produced hail\u2026damaging winds\u2026and small tornadoes.\u00a0 Weak tornadoes (f0) were reported in Broomfield\u2026 3 miles east of Englewood\u2026and in Dacono.\u00a0 No damage was reported\u2026except a trampoline was blown into a window and several trees were downed in Broomfield.\u00a0 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.\u00a0 Large hail\u2026strong winds and heavy rain caused substantial property damage in portions of southeastern Boulder and northern Jefferson counties.\u00a0 Damage estimates in the Broomfield area alone were about 1 million dollars.\u00a0 Winds gusted to 81 mph in Broomfield.\u00a0 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.\u00a0 About 3\/4 inch of rain fell in 30 minutes over miller gulch.\u00a0 Some culverts become plugged by debris from the fire.\u00a0 As a result\u2026small sections of a u.s. forest service road along miller creek were washed out.\u00a0 Lightning struck a home in Castle Rock\u2026causing extensive damage to the roof\u2026attic\u2026and second floor.<\/p>\n

In 2011\u2026severe thunderstorms developed over parts of Adams and Denver counties. At Denver International Airport\u2026a severe thunderstorm produced a peak wind gust to 66 mph\u2026 With another gust to 59 mph measured in Denver.\u00a0 In Commerce City\u2026the intense winds blew down a large tree.<\/p>\n

<\/span>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.\u00a0 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.\u00a0 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 Lockbuie with 1 1\/2 inch hail measured in Brighton.\u00a0 Thunderstorm winds gusted to 69 mph at Bennett.\u00a0 The strong winds were responsible for flipping three semi-trailer trucks onto their sides along I-70\u20263 miles east of Bennett.\u00a0 A few cars were also overturned.<\/p>\n

In 2001\u2026heavy thunderstorm rain caused flash flooding over south metro Denver.\u00a0 Three inches of rain reportedly fell near the greenwood village police department in the span of 15 minutes.\u00a0 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.\u00a0 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.\u00a0 At Denver International Airport\u2026west-northwest winds gusted to 40 mph.<\/p>\n

In 2011\u2026severe thunderstorms produced extensive damage as they moved across the urban corridor. At Denver International Airport alone\u2026large hail up to golfball size\u2026very heavy rain and wind gusts to 59 mph caused substantial damage to 40 planes and stranded approximately 1500 passengers overnight. Frontier and United Airlines were hardest hit as dozens of planes were taken out of service for repairs; forcing the cancellation of at least 220 flights over the next several days. Damage to the aircrafts alone was nearly five million dollars. In addition\u202683 cars in airport parking lots were damaged\u2026 \u00a0Along with some police cars and maintenance vehicles. In watkins\u2026two people suffered minor injuries and 35 to 40 homes were damaged. As many as two hundred residents in a mobile home park were left homeless by the storm\u2026forcing the Red Cross to open a shelter at Bennett High School. The trailer park contained 52 mobile homes\u202614 recreational vehicles\u20263 houses and a commercial building. Hailstones the size of softballs cratered the north sides of the mobile homes. Some farmers in the area said they lost as much as 85 percent of their total wheat crop. Power lines were also damaged which affected about 1200 customers in Watkins. The strong winds also flipped over a tractor- trailer rig on I-70 near Watkins Road. Insurance claims for the Watkins\u2026Bennett and Brighton areas was estimated to be seventeen million dollars. The total damage estimate across the entire urban corridor\u2026was near one hundred sixty five million dollars\u2026and included 17200 automobile claims and 12600 homeowner claims. In addition\u2026thunderstorms producing very heavy rainfall\u2026caused flash flooding in the four mile canyon burn scar west of boulder. Three homes reportedly had water up to the windows with water flowing into structures at Fourmile Canyon Road and Gold Run Road. The heavy rain caused a 4-ft surge along Fourmile Creek through Orodell and into the entry of Boulder Creek. Several roads were affected which restricted access to the area. Roads were closed due to water and debris. Private bridges and drives were washed out and several residents were stranded and later rescued. Numerous cars were damaged in debris flows and several structures suffered flood damage but were not destroyed.<\/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

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.\u00a0 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.\u00a0 By nightfall\u2026 Union Depot was under 2 to 3 feet of water\u2026and railroad and street car traffic was stalled.\u00a0 Those forced from their homes by the surging flood waters took refuge in the Denver auditorium.\u00a0 The flood waters caused great damage to the sewerage system\u2026parkways\u2026bridges and residences and commercial warehouses near Cherry Creek in the wholesale district.\u00a0 Flood damage was estimated at several million dollars.\u00a0 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.\u00a0 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.\u00a0 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.\u00a0 The storm\u2026as it moved into Denver\u2026snapped tree limbs and damaged a fence near Washington Park.\u00a0 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.\u00a0 No damage was reported.\u00a0 Winds gusted to 44 mph at Stapleton International Airport.<\/p>\n

In 1993\u2026a severe thunderstorm moved across southern sections of metro Denver.\u00a0 Dime size hail fell in Lakewood\u2026and hail up to one inch diameter was measured at Cheery Creek Reservoir.\u00a0 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.\u00a0 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 area produced very heavy rain\u2026large hail and damaging winds. The strong winds toppled a few trees and the heavy rain caused street flooding and minor flash flooding. Several cars were stranded at the intersection of Santa Fe Drive and Oxford\u2026and near Broadway and U.S. Highway 285. A 16-yr old teenager was seriously injured when he tried to retrieve a ball along the banks of West Toll Gate Creek. He was pulled from the swollen creek and died several days later. Hail up to one inch in diameter was reported around the area. The thunderstorms also produced frequent lightning. One strike sparked a fire at Aspen Academy\u2026a private school in Greenwood Village. Most of the damage was confined to the roof and attic. In Englewood\u2026a 40-ft tree was blown into a house and knocked down some power lines. At Denver International Airport\u2026a severe thunderstorm produced sustained winds of 47 mph and a peak wind gust to 68 mph.<\/p>\n

<\/span>14-15<\/p>\n

In 1985\u2026thunderstorms dumped heavy rain and hail at numerous locations along the Front Range from Denver north.\u00a0 Some of the heaviest rain fell in northern and western suburbs of Denver.\u00a0 Up to 2.6 inches of rain drenched Arvada\u2026and Thornton was soaked with 2 inches in 45 minutes.\u00a0 At least 5 homes in Arvada suffered extensive damage from water and mud\u2026and many streets and basements were flooded.\u00a0 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.\u00a0 The torrent of water caused a deafening roar as it uprooted trees and carried huge Boulders and other debris.\u00a0 It struck the house and sawmill simultaneously and carried them away like straws\u2026leaving little behind.\u00a0 The water continued to rush down the gulch for several hours.\u00a0 Serious damage was done to the south park railroad.\u00a0 The track and roadbed were destroyed for several miles.\u00a0 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.\u00a0 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.\u00a0 Heavy hail ranging in size from 1\/4 to 3\/4 inch in diameter\u2026severe lightning\u2026 And high winds accompanied the heavy rain.\u00a0 Basements were flooded\u2026and streets were impassable in places for several hours due to the heavy rainfall.\u00a0 Lightning damaged several telephone poles.\u00a0 Hail did extensive damage to gardens and flowers.\u00a0 The hail was up to a foot deep in places.\u00a0 There was no estimate of damage from the storm.\u00a0 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\u2026 Beets\u2026and row crops.\u00a0 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.\u00a0 It touched down over open ground\u2026but caused no damage.<\/p>\n

In 1967\u2026heavy rains flooded streets and underpasses in south Denver.\u00a0 Heavy rain and minor wind damage were reported in Wheat Ridge\u2026Aurora\u2026Englewood\u2026and Littleton.\u00a0 Basements were flooded and power disrupted.\u00a0 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.\u00a0 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.\u00a0 Two people were struck by lightning near Highlands Ranch in south metro Denver.\u00a0 A man was struck by lightning while riding in the back of a pick-up truck in Franktown.\u00a0 All received minor injuries.\u00a0 Strong thunderstorms moved through east metro Denver\u2026producing large hail and flash flooding.\u00a0 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.\u00a0 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.\u00a0 The high temperature at Denver International Airport equaled or exceeded the 90-degree mark for 17 consecutive days\u2026from June 29th.\u00a0 This was one day short of equaling the all time record.\u00a0 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.\u00a0 Hail as large as 1.75 inches in diameter fell in southwest Aurora along with 7\/8 inch hail in centennial.\u00a0 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.\u00a0 The high temperature climbed to 101 degrees on the 15th and 103 degrees on the 16th at Denver International Airport.<\/p>\n

16\u00a0\u00a0\u00a0 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.\u00a0 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.\u00a0 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.\u00a0 Up to 1 1\/2 inches of rain fell in just 40 minutes.\u00a0 Heavy rains in Wheat Ridge flooded a shopping center\u2026breaking windows and doors\u2026while causing 100 thousand dollars in damage.\u00a0 Some roofs and windows were damaged throughout metro Denver.\u00a0 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.\u00a0 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.\u00a0 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.\u00a0 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.\u00a0 Since the rain fell in a relatively open area\u2026no flood damage was reported.\u00a0 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.\u00a0 Two campers near Mt. Evans were injured by lightning and stranded overnight by the inclement weather.\u00a0 Both received only 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.\u00a0 The road had to be closed temporarily.<\/p>\n

In 2005\u2026the temperature climbed to a high of 102 degrees at Denver International Airport.\u00a0 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.\u00a0 The maximum temperature reached 98 degrees on each of the days\u2026setting records on the 16th and 18th.\u00a0 The low temperature of 71 degrees on the 17th was a record high minimum for the date.\u00a0 The high temperature reached 100 degrees on the 17th at the site of the former Stapleton International Airport.<\/p>\n

17<\/p>\n

In 1872\u2026the U.S. Army Signal Service weather observer recorded snowfall during the early morning hours in the hand written daily weather journal:\u00a0 \u201crain commenced at 1:30 a.m. changing about 3 a.m. to snow & in about half an hour to rain again; it continued until 6 a.m.\u201d\u00a0 this is the only recorded occurrence of snowfall in Denver in July\u2026but this report is not included in the \u201cofficial\u201d station snowfall records\u2026which did not begin in Denver until January 1\u20261882.\u00a0 The low temperature on this morning was 45 degrees\u2026which is sufficiently cold for the occurrence of light stratiform snowfall.<\/p>\n

In 1918\u2026a thunderstorm produced hail to an inch in depth on the ground.\u00a0 The stones varied in size from a small cherry stone to nearly 1\/2 inch in diameter.\u00a0 Not much permanent damage was done to crops.\u00a0 Precipitation totaled 0.40 inch\u2026and northeast winds were sustained to 25 mph with gusts to 28 mph.<\/p>\n

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

In 1983\u20263\/4 inch diameter hail fell at Lafayette\u2026while golf ball size hail pelted Brighton and Northglenn where funnel clouds were also sighted.<\/p>\n

In 1986\u20261 1\/2 inches of rain fell in an hour and 15 minutes in southeastern Aurora.\u00a0 Thunderstorm rainfall totaled 0.89 inches at Stapleton International Airport.<\/p>\n

In 1987\u2026a small tornado was sighted near Watkins\u2026in the vicinity of Front Range airport.<\/p>\n

In 1997\u2026lightning ignited an oil well tank holding 10 thousand gallons of oil\u202616 miles northwest of Bennett. About 200 acres of grassland burned before the fire could be extinguished.\u00a0 A dry microburst produced a wind gust to 52 mph at Denver International Airport.<\/p>\n

In 2000\u2026an estimated 2 inches of rain fell in less than an hour\u2026causing two secondary roads in buck and miller gulches in the hi meadows fire burn area to wash out.\u00a0 Water also covered Jefferson County road 68 which connects to bailey.\u00a0 Homeowners in pine valley estates attempted to divert some of the runoff by piling stacks of hay on the hillside above their homes.\u00a0 Torrential rainfall\u2026up to 3.50 inches an hour\u2026caused flash flooding along whiskey gulch near Elizabeth.\u00a0 Several roads were washed out and basements flooded during the storm.\u00a0 Along County road 13\u2026 About 6 miles north-northwest of Elizabeth\u2026rushing water washed away a 15-foot section of the road.\u00a0 The floodwaters forced debris and mud into four huge culverts\u2026sending water over the road.\u00a0 At Denver International Airport\u2026an United Airlines ground crew worker was struck by lightning as she was loading a Boeing 747 jumbo jet.\u00a0 The woman was injured when lightning either hit the jet or the loading equipment that she was working near.\u00a0 The 25-year-old woman received only minor injuries.<\/p>\n

In 2006\u2026outflow from severe thunderstorms to the southeast of metro Denver produced southeast sustained winds to 35 mph with gusts as high as 52 mph at Denver International Airport during the late evening.<\/p>\n

In 2011\u2026a deluge of heavy rain occurred in and around Nederland when the storm dumped nearly 2 inches of rain in 30 minutes. The heavy rainfall washed out hillsides and dirt roads. In Nederland\u2026a culvert became blocked with debris and forced the water to spread into a nearby bookstore. The rainfall also damaged several residential roads in the Sunnyside subdivision and Navajo Road became impassable. Several homes suffered flood damage as the runoff from a nearby beaver creek jumped its banks and flooded garages\u2026living rooms and bedrooms of nearby houses.<\/p>\n

In 2016…a severe thunderstorm produced hail up to one inch in diameter near Buckley Air Force Base.<\/p>\n

18<\/p>\n

In 1874\u2026the temperature climbed to 90 degrees or more for the 18th consecutive day\u2026setting a record.\u00a0 The record was equaled from July 6th through the 23rd in 1901.<\/p>\n

In 1902\u2026a thunderstorm produced northwest winds sustained to 45 mph with gusts to 48 mph along with rain and hail. Total precipitation was 0.53 inch.<\/p>\n

In 1911\u2026a shower produced north winds sustained to 44 mph.<\/p>\n

In 1958\u20261 1\/2 inch diameter hail fell 9 miles west-southwest of Stapleton Airport.<\/p>\n

In 1981\u2026a thunderstorm bombed Evergreen with about 2 inches of rain in 45 minutes.\u00a0 A heavy hailstorm left 5 to 7 inches of hail on the ground in some places and stopped the Colorado Open Golf Tournament at Hiwan.<\/p>\n

In 1985\u2026over 2 inches of rain doused the southwest suburbs of Denver.\u00a0 Street flooding occurred in the Montbello area of northeast Denver.<\/p>\n

In 1992\u2026nickel size hail fell across central Douglas County near Castle Rock and Sedalia.\u00a0 One inch diameter hail fell in Castle Rock.<\/p>\n

In 1993\u2026thunderstorm winds gusted to 60 mph at Strasburg east of Denver.<\/p>\n

In 2004\u2026heavy thunderstorm rainfall caused flooding over parts of the Virginia Canyon Road near Idaho Springs. Several sections of the roadway were washed out.\u00a0 The road was closed temporarily for repairs.<\/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","protected":false},"excerpt":{"rendered":"

A busy week in Denver weather history for sure.\u00a0 Most notable are the occurences of flooding that seem to happen with regularity as well as the costliest hail storm in American history. 1-18 In 1874…a streak of 18 consecutive days of 90 degrees…from the 1st to the 18th…tied for second with another streak that was … Continue reading July 12 to July 18: 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\/20803"}],"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=20803"}],"version-history":[{"count":1,"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/posts\/20803\/revisions"}],"predecessor-version":[{"id":20804,"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/posts\/20803\/revisions\/20804"}],"wp:attachment":[{"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/media?parent=20803"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/categories?post=20803"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/tags?post=20803"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}