{"id":22459,"date":"2022-06-18T16:09:25","date_gmt":"2022-06-18T22:09:25","guid":{"rendered":"http:\/\/www.thorntonweather.com\/blog\/?p=22459"},"modified":"2022-06-18T16:09:25","modified_gmt":"2022-06-18T22:09:25","slug":"june-12-to-june-18-this-week-in-denver-weather-history-3","status":"publish","type":"post","link":"https:\/\/www.thorntonweather.com\/blog\/weather-history\/june-12-to-june-18-this-week-in-denver-weather-history-3\/","title":{"rendered":"June 12 to June 18: This week in Denver weather history"},"content":{"rendered":"

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

The first half of June is when Colorado\u2019s severe weather season really kicks into high gear and our look back at this week in Denver weather history reflects that. Numerous flooding, hail, and tornadic events punctuate just how dangerous and damaging our weather can be this time of year.<\/p>\n

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

11-14<\/p>\n

In 1999\u2026damage from several hailstorms in and near metro Denver totaled 35 million dollars. About 17.5 million dollars was from automobile claims with another 17.5 million in homeowner claims. The areas hardest hit by the storms included Castle Rock\u2026Commerce City\u2026Evergreen\u2026 And Golden.<\/p>\n

12<\/p>\n

In 1901\u2026south winds were sustained to 45 mph with an extreme velocity to 47 mph.<\/p>\n

In 1917\u2026northwest winds were sustained to 40 mph with gusts to 45 mph.<\/p>\n

In 1927\u2026flooding on Little Dry Creek in Englewood resulted in two deaths.<\/p>\n

In 1947\u2026a trace of snow fell over downtown Denver during the early morning. This was the latest last snow of the season (trace or more). This also marked the end of the longest snow season\u2026264 days\u2026from the first snow\u2026a trace\u2026on September 22\u20261946. High temperature of 43 degrees was a record low maximum for the date. Minimum temperature of 33 degrees was a record low for the date.<\/p>\n

In 1971\u2026a funnel cloud sighted over Arvada possibly touched down at the base of the foothills. The public reported 3\/4 inch to 1 inch diameter hail over the city of Denver.<\/p>\n

In 1974\u2026strong thunderstorm winds caused damage to power lines in metro Denver. Northwest winds gusted to 45 mph at Stapleton International Airport.<\/p>\n

In 1975\u2026a thunderstorm wind gust to 56 mph was recorded at Stapleton International Airport.<\/p>\n

In 1982\u2026three small tornadoes were sighted near Bennett. One of the twisters caused minor crop and road damage along its path. A brief tornado was sighted by national weather service observers at Stapleton International Airport.<\/p>\n

In 1983\u20263\/4 inch hail fell in Boulder. Golf ball to 3\/4 inch size hail fell in Arvada\u2026denting cars and house roofs. Over a thousand hail damage insurance claims were filed from the area. Golf ball size hail also fell in Northglenn and Bennett\u20261 to 2 inch hail in Thornton\u20262 1\/2 inch hail in northeast of Denver. A tornado was sighted 10 miles northeast of Stapleton International Airport; it was only on the ground for 1 to 2 minutes.<\/p>\n

In 1984\u2026large hail pelted many parts of southern metro Denver. Fifteen aircraft were damaged by golf ball size hail at Centennial airport. Golf ball size hail was reported in south Denver\u2026and 3\/4 inch hail was measured in southeast Aurora.<\/p>\n

In 1987\u2026a small weak tornado touched down for about 3 minutes near the intersection of I-70 and Colorado Blvd in northeast Denver. No damage was recorded. A microburst wind gust to 53 mph was recorded at Stapleton International Airport.<\/p>\n

In 1991\u2026in the city of Denver\u2026lightning struck a tree under which seven people were picnicking. One person was critically injured. The others received only minor injuries.<\/p>\n

In 1992\u2026golf ball size hail fell in Evergreen.<\/p>\n

In 1994\u2026microburst winds gusting to 53 mph kicked up some blowing dust at Stapleton International Airport.<\/p>\n

In 1996\u2026lightning struck a house in Parker\u2026which sparked a fire. The bolt was strong enough to blow nails out of the drywall in one room. About 85 percent of the house was damaged. No dollar estimate of the damage was available. Lightning also struck a power line in Boulder\u2026which left 250 customers without electricity for a short time.<\/p>\n

In 1997\u2026a tornado touched down near Parker\u2026damaging some construction equipment. Hail to 2 inches in diameter was measured in Henderson. One inch diameter hail fell in the city of Denver with 3\/4 inch hail measured in Lakewood.<\/p>\n

In 1999\u2026hail as large as 1 1\/2 inches in diameter struck Hudson. A funnel cloud was sighted by ramp personnel to the east of Denver International Airport.<\/p>\n

In 2003\u2026lightning blew a hole in the roof of a house in Highlands Ranch. The bolt knocked several holes in the bedroom ceiling and damaged the home\u2019s electrical system.<\/p>\n

In 2004\u2026lightning struck a home in Louisville\u2026but caused only minor damage.<\/p>\n

In 2006\u2026a strong microburst wind gust\u2026estimated at 69 mph\u2026 Ripped the roof off a horse barn near the intersection of Havana Street and Smith Road in Denver. A 13 year old girl was injured\u2026when she was thrown from a horse inside the barn at the time the roof was being torn off. A thunderstorm produced a microburst wind gust to 54 mph and a trace of rainfall at Denver International Airport. A severe thunderstorm produced hail to 0.75 inch near Watkins.<\/p>\n

<\/span>12-17<\/p>\n

In 2000\u2026two large wildfires developed in the Front Range foothills as careless campers and very dry conditions proved to be a dangerous combination. Strong winds gusting in excess of 60 mph on the 13th fanned the flames\u2026 Spreading both wildfires out of control. Winds gusted to 78 mph atop Niwot Ridge near the Continental Divide west of Boulder. The Hi Meadows wildfire\u2026about 35 miles southwest of Denver\u2026consumed nearly 11 thousand acres and 80 structures\u2026mostly high priced homes. The Bobcat wildfire\u2026located about 12 miles southwest of Fort Collins\u2026 Consumed nearly 11 thousand acres and 22 structures. Late on the 16th\u2026a strong cold front moved south over the great plains into northeastern Colorado. Low level upslope conditions developed in the wake of the front\u2026producing 2 to 4 inches of snowfall overnight at elevations above 8 thousand feet. Firefighters were able to contain both fires shortly thereafter.<\/p>\n

13<\/p>\n

In 1956\u2026a microburst caused a brief wind gust to 59 mph at Stapleton Airport.<\/p>\n

In 1957\u2026an unconfirmed tornado appeared to touch the ground in the vicinity of Franktown. No damage was reported from the twister.<\/p>\n

In 1968\u2026a violent gust of wind\u2026possibly associated with a thunderstorm\u2026caused 75 hundred dollars damage in Boulder.<\/p>\n

In 1973\u2026hail\u20261\/2 to 3\/4 inch in diameter\u2026fell over Lakewood. Flash flooding occurred in west Denver from the same storm.<\/p>\n

In 1974\u2026a thunderstorm wind gust to 64 mph was recorded at Stapleton International Airport.<\/p>\n

In 1977\u2026hail the size of table tennis balls\u20261 1\/2 inches in diameter\u2026was reported in Boulder.<\/p>\n

In 1981\u2026large hail to golf ball size fell in Denver\u2026 Northglenn\u2026and Brighton. Hail as large as baseballs was reported in federal heights.<\/p>\n

In 1984\u2026one of the worst hailstorms ever experienced in metro Denver struck the northwestern suburbs of Arvada\u2026Wheat Ridge\u2026and Lakewood\u2026but large hail also fell in Golden\u2026 Southeast Denver\u2026and Aurora. Homes and other buildings sustained around 200 million dollars in damage. Thousands of cars were battered by giant hailstones\u2026and total damage to vehicles was estimated at 150 million dollars. In some areas\u2026golf ball size hail fell continuously for 30 to 40 minutes. Some places were pelted with a few stones as large as grapefruits! Roofs on thousands of structures were severely damaged. Uncounted car windshields were broken; two-thirds of Arvada\u2019s police cars were rendered inoperable. Torrential rains\u2026with as much as 4.75 inches in Lakewood clogged drains and caused widespread damage from flooding. In some places hail was washed into drifts several feet deep. About 20 people were injured by the giant hailstones. One couple was hospitalized. A woman drowned when she was trapped under a trailer by high water. Only pea size hail fell at Stapleton International Airport.<\/p>\n

In 1988\u20262 inch hail fell in Parker. Soft hail 1 inch in diameter fell at the mouth of turkey creek canyon 5 miles southeast of Morrison. Hail between 1 inch and 1 3\/4 inches fell at both Bennett and Strasburg. A tornado touched down briefly at Strasburg. A brief funnel cloud was sighted by national weather service observers 15 miles southwest of Stapleton International Airport.<\/p>\n

In 1991\u2026a Boulder man was injured when struck by lightning while in a tent. He received only minor burns.<\/p>\n

In 1997\u2026lightning struck a home in Denver. The extent of the damage was unknown. A home in Littleton was also struck. The house caught fire\u2026but the extent of the damage was not known.<\/p>\n

In 1998\u2026a strong mountain wave produced a brief period of high winds along the Front Range. A small building atop squaw pass west of Denver was blown down. Tree limbs were downed across metro Denver. Peak wind gusts included: 80 mph on Squaw Pass\u202669 mph at Jefferson County Airport near Broomfield\u2026and 60 mph in Westminster and at the National Center for Atmospheric Research in Boulder. West-northwest winds gusted to 51 mph at Denver International Airport.<\/p>\n

In 2001\u2026high winds developed briefly in Boulder County. A peak wind gust to 76 mph was recorded at the National Center for Atmospheric Research atop the mesa in Boulder. A wind gust to 72 mph was recorded at southern hills middle school in Boulder. Lightning started a small fire\u2026which damaged the roof of a house in Greenwood Village.<\/p>\n

In 2009\u2026severe thunderstorms produced hail up to one inch in diameter near Arvada and byers\u2026as well as 7 miles north-northwest of Front Range airport near watkins.<\/p>\n

13-14<\/p>\n

In 2006\u2026the high temperature of 99 degrees on the 13th equaled the record maximum temperature for the date first set in 1994. The high temperature of 102 degrees on the 14th was a new record maximum temperature for the date.<\/p>\n

14<\/p>\n

In 1877\u2026an evening thunderstorm produced lightning which struck several houses and killed a cow in the bottom land of the South Platte River<\/p>\n

In 1886\u2026hail as large as 3\/4 inch in diameter fell in the city. Precipitation was only 0.10 inch.<\/p>\n

In 1887\u2026south winds were sustained to 41 mph.<\/p>\n

In 1900\u2026a thunderstorm produced northwest winds to 51 mph with gusts to 61 mph\u2026but only a trace of rain.<\/p>\n

In 1923\u2026a severe thunderstorm pelted the city with hail. The stones ranged in diameter from 0.2 to 0.8 inch. Gardens and greenhouses suffered considerable damage. Rainfall was only 0.14 inch downtown.<\/p>\n

In 1960\u2026one workman was killed and 4 others injured in Lakewood when a partly built apartment building collapsed in strong winds. Microburst wind gusts to 54 mph caused some blowing dust at Stapleton Airport.<\/p>\n

In 1967\u2026tornadoes touched down briefly 3 miles west of Franktown and 4 miles northeast of Parker. No damage was reported. Numerous funnel clouds were reported over south metro Denver\u2026one 5 miles south of Denver\u2026one 2 to 3 miles north of Castle Rock\u2026and two near Littleton.<\/p>\n

In 1968\u2026a microburst wind gust to 52 mph was recorded at Stapleton International Airport.<\/p>\n

In 1972\u20261 3\/4 inch hail was reported in Wheat Ridge.<\/p>\n

In 1976\u2026high winds\u2026unusually strong for this late in the season\u2026raked metro Denver. Wind gusts estimated to 100 mph tore 24 boats from their moorings and damaged a total of 47 boats at Boulder reservoir. Wind gusts to 82 mph were recorded in Boulder. The strong winds toppled the wind mast at a radio station in Boulder. An automobile was smashed by a fallen tree in Boulder. Other damage in Boulder was minor\u2026but power outages occurred when tree limbs fell on power lines. At Jefferson County Airport near Broomfield\u2026wind gusts to 78 mph were recorded with 87 mph gusts clocked at Rocky Flats nuclear plant south of Boulder. Wind gusts to 66 mph were observed in Littleton\u2026 And northwest winds gusted to 46 mph at Stapleton International Airport. The strong winds collapsed a barn near Arvada. Several horses received minor injuries. Thirty trees were uprooted or broken in Denver. Four major power outages occurred from west Denver and Lakewood to the foothills.<\/p>\n

In 1982\u2026the worst hailstorm in 17 years struck Commerce City. The storm left 4 to 8 inches of hail on the ground. A few of the stones were as large as golf balls. Many vehicles were dented\u2026and some windshields were shattered. Roofs of homes were damaged. Total damage was estimated at over one million dollars. Hail to 1 inch in diameter also fell in Littleton. Only 1\/4 inch hail was measured at Stapleton International Airport.<\/p>\n

In 1988\u2026lightning ripped a small hole in the roof of a home in the southern part of Boulder. There were some power outages in the area.<\/p>\n

In 1992\u2026an off duty national weather service employee reported hail to 1 inch diameter in Westminster.<\/p>\n

In 1997\u2026one inch diameter hail fell in Bennett\u2026and 3\/4 inch hail was measured in Littleton.<\/p>\n

In 1999\u2026hail as large as 1 1\/2 inches in diameter hit Aurora. Lightning sparked two small fires at separate residences near the Hiwan Country Club in Evergreen.<\/p>\n

In 2004\u2026lightning sparked two small fires near Jamestown. One was in Geer Canyon and the other 7.5 miles up Sunshine Canyon. Both were quickly contained and caused no damage to structures in the area.<\/p>\n

In 2009\u2026a complex of severe thunderstorm produced large hail damaging thunderstorm and funnel clouds across parts of the urban corridor. The line formed along a boundary over the western suburbs of Denver then moved east. The boundary produced at least one well defined funnel cloud that could be observed by stadium full of baseball fans at Coors Field. Large hail\u2026up to 1 3\/4 inches in diameter\u2026was reported in Arvada\u2026Broomfield\u2026Denver\u2026Federal Heights and Northglenn. In addition\u2026the storm produced peak wind gusts from 60 to 74 mph. At Denver International Airport\u2026a peak wind gust to 58 mph was observed from the west-northwest.<\/p>\n

In 2014\u2026severe thunderstorms broke out across the Urban corridor. Large hail\u2026ranging in size from 1 to 2 inches in diameter\u2026was observed. The area extended from around Englewood to Aurora and included: Brookridge\u2026Cherry Knolls\u2026 Greenwood Village and south Denver. As many as 212 thousand residences were potentially impacted by the storms. The hail shattered windshields and damaged vehicles.<\/p>\n

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

In 1907\u2026south winds were sustained to 40 mph. The winds were strong all day.<\/p>\n

In 1908\u2026the hail storm was unusually severe. Heavy clouds moved over the city from the north and northwest\u2026and by late morning the weather had become very threatening. Heavy rain with intermittent hail from pea to 3\/4 inch in diameter fell near noon. The fall of rain and hail totaled 0.68 inch of precipitation with 0.35 inch in just 5 minutes. The temperature fell from 71 degrees to 51 degrees during the storm. The hail did considerable damage to trees\u2026gardens\u2026and hot houses. On sidewalks with northern exposures\u2026the hail ranged in depth from 2 to 6 inches. West winds were sustained to 29 mph during the storm.<\/p>\n

In 1956\u2026strong southeast winds raked metro Denver all day. Sustained winds at 44 mph with gusts as high as 61 mph were recorded at Stapleton Airport where blowing dust briefly reduced the visibility to 2 miles.<\/p>\n

In 1984\u2026golf ball size hail pelted southern and central Aurora. Rainfall of 2.06 inches over central Aurora in just over an hour produced local street flooding.<\/p>\n

In 1987\u2026golf ball size hail fell in the southern part of Lakewood.<\/p>\n

In 1988\u2026several tornadoes developed across metro Denver. One tornado touched down just northeast of the rocky mountain arsenal. The twister moved very slowly and did no damage\u2026except to demolish a small electrical substation\u2026 Even though it was on the ground for nearly 30 minutes. Later\u2026another tornado was sighted east of Brighton about 2 miles north of barr lake. An f2 tornado cut a swath through northeast Denver. The main path went through a thickly wooded area for about 6 blocks and uprooted about 500 city owned trees\u2026many of them large elms 75 to 100 years old. Hundreds of privately owned trees were also sucked from the ground by the slow moving twister\u2026which was filmed by a news team in a helicopter as it uprooted trees. The replacement cost to the city owned trees was estimated at 1.5 million dollars. The twister did little damage to buildings. Some homes suffered roof and chimney damage\u2026a gas main was ruptured\u2026and some cars were damaged by falling trees. The uprooted trees also caused curb and sidewalk damage and cut some electrical wires. The funnel cloud passed close to Stapleton International Airport. Aircraft operations were shut down\u2026and the tower was evacuated. The tornado was on the ground for almost 25 minutes. An F3 tornado cut an erratic path through south Denver for about 25 minutes\u2026causing extensive damage in at least 3 areas. The twister damaged about 85 buildings\u2026 20 severely; the total loss was estimated at 5 to 10 million dollars. Many cars were severely damaged; at least 15 vehicles were overturned. One trailer was lifted onto the top of a building that had just been unroofed; numerous antique cars inside the building were damaged. A ford bronco was blown over a church\u2026and landed 100 yards away. A metal storage shed was deposited far above the ground in some power lines. The tornado uprooted many trees on a golf course. No one was seriously hurt\u2026although seven people suffered minor injuries from flying debris. A golfer was thrown 40 feet\u2026but was not hurt; a man clinging to a telephone pole was unscathed\u2026but lost both shoes\u2026a sock\u2026and buttons off his shirt. A woman holding a baby was sucked through a broken convenience store window\u2026 But was unhurt. A dog\u2026tethered to the ground by its leash\u2026 Was suspended in the air by the twister. Uprooted trees crushed cars and damaged curbs and sidewalks. People in downtown Denver could see three tornadoes occurring simultaneously. Hail as large as 1 3\/8 inches in diameter fell in extreme southeast Aurora.<\/p>\n

In 1997\u2026a tornado touched down briefly at the Colorado National Speedway near Dacono north of Denver. The tornado ripped through the south grandstand causing at least 50 thousand dollars in damage to a shed\u2026kiosk\u2026 Bleachers\u2026and several concession stands.<\/p>\n

In 2004\u2026a tornado touched down briefly near Castle Rock and blew the roof off a machine shop. A tornado near Elizabeth destroyed a barn and caused roof damage to a home. Two other barns on nearby properties were damaged extensively. The twister also caused widespread tree damage in the area. A tornado also touched down near Bennett and Strasburg\u2026but did no damage.<\/p>\n

In 2009\u2026thunderstorm winds knocked a tree on to two vehicles in Boulder. One of the drivers was injured when the tree smashed into the windshield of her car.<\/p>\n

15-16<\/p>\n

In 1963\u2026heavy rain and hail ravaged metro Denver. In southeast Denver\u2026heavy rain flooded homes and streets. Hail to a depth of 4 inches on the ground stripped trees and plants and drifted to depths of 3 to 4 feet in some areas. Flood waters on the Valley Highway were 19 feet deep in places\u2026trapping many cars. Many creeks were running over their banks. On the 15th\u2026the main thunderstorm cell passed over south Denver\u2026dumping as much as 4 inches of rain in 90 minutes. Precipitation at Stapleton Airport totaled 0.91 inch on the 15th and 1.31 inches on the 16th. A funnel cloud was sighted briefly 4 miles to the south-southeast of Stapleton Airport on the 15th. Damage from hail and flooding amounted to near a million dollars.<\/p>\n

15-17<\/p>\n

In 2021…the temperature in Denver reached 100 degrees for three consecutive days: 101…100…100 respectively. Each established a new record high for the day. It was also the earliest occurrence of such a streak. A record high minimum of 68 also occurred on the 17th.<\/p>\n

16<\/p>\n

In 1950\u2026very heavy rain and hail storms in southwest Denver caused an estimated 750 thousand dollars in hail and flood damage. Thunderstorms produced 2.06 inches of rain at Stapleton Airport with 2.23 inches of rain measured in downtown Denver.<\/p>\n

In 1965\u2026a tornado\u202615 miles south-southeast of Denver\u2026 Touched down and damaged two houses in northern Douglas County. Three golfers at a country club and a woman who lived north of Castle Rock were injured by falling structures.<\/p>\n

In 1983\u2026a microburst wind gust to 54 mph was recorded at Stapleton International Airport.<\/p>\n

In 1984\u2026a tornado touched down briefly in Parker. No damage was reported.<\/p>\n

In 1986\u2026lightning injured 5 people just north of the Denver city limits in Adams County. The victims were members of a drum and bugle corps and were standing near a metal scaffold. Heavy rain from the storm also caused street flooding in the metro area.<\/p>\n

In 1991\u2026hail to golf ball size fell at Conifer.<\/p>\n

In 1992\u2026a rare mid-June high wind event wreaked havoc over metro Denver when a Pacific cold front moved across the Rocky Mountains. Strong winds at speeds of 40 to 50 mph were common along the Front Range foothills. Winds reaching 107 mph in the foothills west of Denver and 79 mph at Longmont\u2026caused damage ranging from trees being toppled to large trucks being rolled over. Strong winds estimated at 75 mph rolled a 35-foot truck carrying building supplies on U.S. Highway 36 north of Boulder. The truck driver and a passenger as well as the driver of another car were slightly injured. The winds downed power lines. The gambling towns of Central City and Blackhawk were without power for a couple of hours. West winds reached 43 mph at Stapleton International Airport.<\/p>\n

In 1996\u2026a small tornado touched down in the foothills southwest of Boulder near Pinecliffe\u2026knocking down 50 to 100 large pine trees. A house nearby sustained damage when shingles were ripped from the roof. The tornado also picked up a 17-foot sailboat with attached trailer and carried it 25 feet into a nearby tree. In addition\u2026 Thunderstorm wind gusts to 46 mph were measured at Denver International Airport.<\/p>\n

In 2004\u2026hail as large as 1 inch in diameter fell near Castle Rock. Hail to 3\/4 inch was measured near Bennett.<\/p>\n

In 2005\u2026severe thunderstorms produced hail as large as 1 inch in diameter in Centennial.<\/p>\n

In 2011\u2026severe thunderstorms produced and damaging across parts of metropolitan Denver. In Lakewood\u2026a tree blew down and landed on at least five cars. At Centennial Airport\u2026a section of a roof on a hangar was ripped off the strong winds.\u00a0 A peak wind gust of 46 mph was recorded at Centennial Airport and Denver International Airport in the evening.<\/p>\n

16-17<\/p>\n

In 1965\u2026on the afternoon and evening of the 16th\u2026violent thunderstorms produced extremely heavy cloudbursts of rain over the palmer divide and sent a wall of water as high as 20 feet down both branches of plum creek into the South Platte River and through metro Denver. The heavy rainfall produced the most devastating flood in the history of Denver. Rainfall totaled 14.0 inches in 3 hours at both Larkspur and Palmer Lake with 12.0 inches recorded in Castle Rock. The flood waters caused extensive damage to roads and bridges in Larkspur\u2026Castle Rock\u2026and Sedalia\u2026including washing out the I-25 bridge over east Plum Creek in Castle Rock. The citizens of metro Denver received reports of the flooding to the south and had a few hours to initiate evacuation procedures along the South Platte River\u2026greatly limiting the loss of life. By evening\u2026the flood reached Littleton where an heroic effort was made to save nearly 150 horses at the Centennial racetrack\u2026which was completely inundated by the flood waters. As the flood proceeded through the city of Denver\u2026the river became more than 1\/2 mile wide and destroyed all homes\u2026trailer courts\u2026 And businesses in its path. The waters contained debris ranging from refrigerators to old cars. As many as 26 bridges were damaged or destroyed\u2026including the 6th avenue freeway bridge across the South Platte. Both Public Service Company power plants were shut down by the flood. The King Soopers grocery chain bakery was inundated. About midnight\u2026 The torrent crested at 25 feet above normal with flow exceeding 40 times normal and is the record flood on the South Platte and many of its tributaries. The flood caused 230 million dollars in damage and 8 deaths along the entire South Platte River basin. The intense rain also caused flooding along Cherry Creek in Denver\u2026on Toll Gate and Sand creeks in east metro Denver\u2026and on Kiowa and Bijou creeks to the east of Denver. The South Platte River flood closed nearly every major east-west highway into Denver\u2026nearly isolating the city. The flood caused heavy damage to state and County roads in the area. Railroads were also hard hit with the main yards in lower downtown inundated. Sewerage\u2026 Water supply facilities\u2026and irrigation works also received heavy flood damage. The flood crest did not reach Nebraska until the 20th.<\/p>\n

17<\/p>\n

In 1915\u2026northwest winds were sustained to 41 mph with an extreme velocity to 42 mph.<\/p>\n

In 1967\u2026this was the 24th consecutive day with a trace or more of precipitation from May 25th. Precipitation totaled 5.87 inches during the period\u2026more than a third of the average yearly total.<\/p>\n

In 1975\u2026hail more than 2 inches in diameter fell in eastern Aurora.<\/p>\n

In 1977\u2026golf ball size hail was reported 3 miles east of Arapahoe County Airport\u2026now Centennial Airport. Heavy hail to 3\/4 inch in diameter was reported in Littleton\u2026 Castle Rock\u2026and Sedalia.<\/p>\n

In 1979\u2026a man and a girl were struck and killed by lightning while walking in a park in northwest Denver.<\/p>\n

In 1987\u20263\/4 inch hail fell near Boulder.<\/p>\n

In 1991\u2026a microburst wind gust to 59 mph kicked up some blowing dust at Stapleton International Airport.<\/p>\n

In 1998\u2026hail as large as 3\/4 inch in diameter fell in Boulder.<\/p>\n

In 2003\u2026lightning struck a feeder line\u2026knocking out the electricity to about 3000 residents in Littleton. A lightning strike caused minor damage to the roof and attic of a home in Lafayette. Another lightning strike caused minor roof damage to a residence in Louisville. Yet another lightning strike hit a home in Denver and caused a small attic fire. Hail as large as 1 inch in diameter was measured near Centennial airport and near Greenland.<\/p>\n

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

In 2015…a severe thunderstorm produced hail up to 1 1\/2 inches in diameter near Arapahoe Park…and up to 1 inch in diameter near Parker.<\/p>\n

17-18<\/p>\n

In 1964\u2026high winds at speeds of 50 to 60 mph with gusts as high as 75 mph caused damage to homes\u2026power lines\u2026and trees in Boulder. Non-convective west winds gusting to 46 mph caused some blowing dust at Stapleton International Airport on the 17th.<\/p>\n

18<\/p>\n

In 1875\u2026a windstorm produced sustained winds to 45 mph during the morning hours. Numerous forest fires along the base of the mountains were visible from the city.<\/p>\n

In 1886\u2026northwest winds sustained to 40 mph were the strongest of the month that year.<\/p>\n

In 1987\u2026severe thunderstorms produced lightning\u2026large hail\u2026 A tornado\u2026heavy rain\u2026and strong winds across metro Denver. Rainfall totaled 2.50 inches in an hour in Wheat Ridge\u2026 Causing minor flooding. I-25 was flooded in north-central Denver\u2026snarling traffic. Hail 7\/8 inch in diameter fell in Louisville with 1 1\/2 inch hail near Golden and 1 to 1 3\/4 inch hail in and near Castle Rock. A tornado touched down briefly in Castle Rock. No damage was reported. Lightning started a small fire that burned half a cabin near Evergreen.<\/p>\n

In 1994\u2026a funnel cloud was sighted over Aurora; hail to 1 3\/4 inch diameter fell near Brighton; and hail over an inch in diameter fell over Aurora\u2026southeast Denver\u2026 Louisville\u2026and Boulder. Lightning struck a home in Henderson 9 miles north of Denver and knocked a hole in the roof\u2026which caused the ceiling to collapse. Hail to 1 1\/4 inch diameter was measured at Stapleton International Airport.<\/p>\n

In 2002\u2026the Hayman wildfire in the foothills to the southwest of Denver intensified\u2026and the winds aloft carried the smoke plume directly over metro Denver\u2026again creating a dense haze of smoke which blocked the sun. Surface visibilities were again reduced to as low as 1 1\/4 miles at Denver International Airport.<\/p>\n

In 2004\u2026severe thunderstorms produced hail to 3\/4 inch in diameter near Morrison\u2026in Littleton\u2026near Conifer\u2026near Castle Rock\u2026and in Aurora near Cherry Creek.<\/p>\n

In 2013\u2026a landspout tornado touched down at DIA. The tornado sent 10 thousand travelers on the concourse\u2026on planes and in the terminal scrambling to get into tornado shelters. The tornado formed just to the south of Runway 35R and then moved slowly northwest between Runway 35R and 35L\u2026and moved to within one third of a mile of Concourses A and B before dissipating. The tornado moved extremely close if not over the ASOS (Automated Surface Observation System) and another low level wind shear sensor at DIA. The ASOS weather observing system reported a 97 mph wind gust\u2026while the wind shear sensor reported a wind gust to 109 mph at the same time indicative of an EF1 tornado. There was only minor damage noted to the equipment. Nine flights were diverted elsewhere during a tornado warning. Severe thunderstorms also produced large hail up to quarter size in Adams and Weld Counties.<\/p>\n

In 2014\u2026a severe thunderstorm produced large hail up to quarter size near Buckley Air Force Base.\u00a0 At Denver International Airport\u2026a peak wind gust to 55 mph was observed from the southwest\u2026along with 0.37 inches of water.<\/p>\n

In 2015…a severe thunderstorm produced hail…from 1 to 1 3\/4 inches in diameter…near Lafayette…Louisville and Superior.<\/p>\n","protected":false},"excerpt":{"rendered":"

The first half of June is when Colorado\u2019s severe weather season really kicks into high gear and our look back at this week in Denver weather history reflects that. Numerous flooding, hail, and tornadic events punctuate just how dangerous and damaging our weather can be this time of year. From the National Weather Service: 11-14 … Continue reading June 12 to June 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":[81,106,62,41,741],"_links":{"self":[{"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/posts\/22459"}],"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=22459"}],"version-history":[{"count":1,"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/posts\/22459\/revisions"}],"predecessor-version":[{"id":22460,"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/posts\/22459\/revisions\/22460"}],"wp:attachment":[{"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/media?parent=22459"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/categories?post=22459"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.thorntonweather.com\/blog\/wp-json\/wp\/v2\/tags?post=22459"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}