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Public Information Statement
Issued by NWS Denver/Boulder, CO
Issued by NWS Denver/Boulder, CO
791 NOUS45 KBOU 150859 PNSBOU COZ030>051-152300- Public Information Statement National Weather Service Denver/Boulder CO 259 AM MDT MON JUL 15 2024 ...Today in metro Denver weather history... 7-25 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. 13-5 In 2008...a streak of 24 consecutive days of 90 degrees...from July 13th to August 5th...shattered the previous record of 18 consecutive days established in 1901 and 1874. Ironically... no new single day record high temperatures were set in the month of July. In August however...a record of 104 degrees was set on the 1st...and another record of 103 degrees was set on the 2nd. In addition...a record low min of 70 degrees was set on August 2nd. 14-15 In 1985...from the 14th into the 15th...thunderstorms dumped heavy rain and hail at numerous locations along the Front Range from Denver north. Some of the heaviest rain fell in northern and western suburbs of Denver. Up to 2.6 inches of rain drenched Arvada...and Thornton was soaked with 2 inches in 45 minutes. At least 5 homes in Arvada suffered extensive damage from water and mud...and many streets and basements were flooded. In southern Jefferson County...11 homes were struck by lightning. 15 In 1879...a terrific hailstorm occurred in the vicinity of 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`s eggs fell thick and fast and broke nearly every pane of glass in the windows of the building. A "waterspout" or cloudburst caused much loss of property from flash flooding on a nearby gulch. The torrent of water caused a deafening roar as it uprooted trees and carried huge boulders and other debris. It struck the house and sawmill simultaneously and carried them away like straws...leaving little behind. The water continued to rush down the gulch for several hours. Serious damage was done to the South Park Railroad. The track and roadbed were destroyed for several miles. At about the same time...heavy rains in the vicinity of the headwaters of Cherry Creek produced a rapid rise in the creek...which drowned a few head of cattle and washed away two footbridges and some fences. Only 0.10 inch of rainfall was recorded in Denver. In 1896...a thundestorm produced sustained southwest winds to 40 mph with gusts to 46 mph. In 1902...the temperature reached a high of 100 degrees in downtown Denver...which was a record maximum for the date. In 1929...a thunderstorm did considerable damage to property in the eastern portion of the city. Heavy hail ranging in size from 1/4 to 3/4 inch in diameter...severe lightning... and high winds accompanied the heavy rain. Basements were flooded...and streets were impassable in places for several hours due to the heavy rainfall. Lightning damaged several telephone poles. Hail did extensive damage to gardens and flowers. The hail was up to a foot deep in places. There was no estimate of damage from the storm. A thunderstorm produced only a trace of rain and east winds to 24 mph in downtown Denver. In 1959...thunderstorm 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...complete double rainbows were observed from the Weather Bureau office at Stapleton Airport. In 1962...hail pelted the area in Adams County around Henderson and Brighton...causing extensive damage to corn...grain... beets...and row crops. Crop damage was estimated at 250 thousand dollars. In 1963...a man received severe burns when struck by lightning while painting a building in south Denver. In 1965...a State Patrolman sighted a tornado near Bennett. It touched down over open ground...but caused no damage. In 1967...heavy rains flooded streets and underpasses in south Denver. Heavy rain and minor wind damage were reported in Wheat Ridge...Aurora...Englewood...and Littleton. Basements were flooded and power disrupted. The clouds and rain resulted in a high temperature of only 72 degrees...which was a record low maximum for the date. In 1974...a severe lightning storm damaged several homes and caused a number of power outages in both Denver and western Arapahoe counties. In 1975...lightning killed a girl west of Boulder. In 1982...winds gusted to 60 mph at Stapleton International Airport...and strong winds blew down walls at a construction site in Aurora where a nearby tree was uprooted. In 1985...0.79 inch of rain fell in 30 minutes at Castle Rock. Much of the town lost power when lightning struck the town`s transformer. In 1992...a man was struck by lightning while horseback riding near Castle Rock. Two people were struck by lightning near Highlands Ranch in south metro Denver. A man was struck by lightning while riding in the back of a pick-up truck in Franktown. All received minor injuries. Strong thunderstorms moved through east metro Denver...producing large hail and flash flooding. Hail up to 1 1/4 inches in diameter fell near Buckley Air National Guard Base. Rainfall of 1 to 3 inches fell in Aurora in less than an hour...leaving water up to 18 inches deep in some areas. Thunderstorm rainfall was measured at 0.97 inch at Stapleton International Airport...where 3/8th inch diameter hail fell and south winds gusted to 44 mph. In 1993...dime size hail fell in Golden. National Weather Service observers at Stapleton International Airport sighted a small rope-like funnel overhead for about 3 minutes before it dissipated. In 1994...a small...short-lived tornado caused damage to a house under construction in Parker. In 1995...thunderstorm winds of unknown strength downed trees and branches...damaging a porch and nearby cars in Denver. In 1998...hail to 7/8 inch in diameter fell near Keenesburg. In 2000...this date marked the end of a near record hot streak for metro Denver. The high temperature at Denver International Airport equaled or exceeded the 90-degree mark for 17 consecutive days...from June 29th. This was one day short of equaling the all time record. The record of 18 consecutive days was set in two different years...July 1st-18th...1874 and July 6th-23rd...1901. In 2005...severe thunderstorms produced large hail over southeast metro Denver. Hail as large as 1.75 inches in diameter fell in southwest Aurora along with 7/8 inch hail in Centennial. Hail to 3/4 inch in diameter was measured near Centennial Airport and near Watkins. 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. 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. 15-16 In 2006...a brief mid July hot spell resulted in two 100 plus degree high temperatures and two daily maximum temperature records. The high temperature climbed to 101 degrees on the 15th and 103 degrees on the 16th at Denver International Airport. $$