Public Information Statement
Issued by NWS Denver/Boulder, CO
Issued by NWS Denver/Boulder, CO
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351 NOUS45 KBOU 010859 PNSBOU COZ030>051-012300- Public Information Statement National Weather Service Denver/Boulder CO 259 AM MDT SUN SEP 1 2024 ...Today in metro Denver weather history... 1 In 1951...large hail pounded Boulder...causing thousands of dollars in damage to roofs and automobiles. Heavy thunderstorm rainfall flooded basements and produced widespread street flooding. In 1966...severe thunderstorms caused local flooding in areas from Denver to the north and east. There was scattered damage from hail and lightning. Streets were flooded in Boulder...and streets and basements were flooded in several areas of metro Denver. The public reported 1 inch diameter hail in Aurora and near Cherry Creek Reservoir. Thunderstorm rainfall totaled only 0.39 inch at Stapleton International Airport. In 1985...severe thunderstorms dumped heavy rain and hail at many locations along the Front Range from Denver south. The southern and eastern suburbs of metro Denver were especially hard hit. Rainfall from 1 1/2 to 3 inches caused extensive street flooding in Aurora where two creeks rose out of their banks. Two homes in the city suffered minor lightning damage. Almost 4 inches of rain fell in the Parker area. Hail up to ping-pong ball size piled up to a foot deep and closed a road in Evergreen. Hail as large as 1 3/4 inches in diameter was reported 8 miles northeast of Deckers. Wind gusts to 65 mph were estimated in southeast Aurora. In 1990...marble size hail piled up to 2 inches deep in the foothills community of Kittredge...18 miles southwest of Denver. As much as half an inch of rain fell in just 15 minutes and caused minor road and small stream flooding. A thunderstorm dropped pea to marble size hail and brief heavy rain near Ward Road and 64th Avenue in Arvada. Minor street and small stream flooding was reported in the area. In 1995...a strong thunderstorm microburst with only a few drops of rain produced a recorded wind gust to 85 mph at the site of the former Stapleton International Airport. The wind gust occurred at 8:30 PM MDT. The all-time highest recorded temperature in September...97 degrees... occurred. The same temperature also occurred on September 5...1899...September 4...1960...and September 4... 1995. In 2019...the high temperature in Denver reached 98 degrees... which not only broke the record for the date...but also set a new monthly record for the month of September. 1-5 In 1995...record breaking heat occurred on the first 5 days of the month when the temperature climbed into the 90`s on each day. Record high temperatures of 97 degrees on both the 1st and 4th equaled the all-time record maximum for the month. High temperature of 95 degrees on the 3rd was a record for the date. High temperatures of 94 degrees on both the 2nd and the 5th were not records. The low temperature of 64 degrees on the 4th equaled the record high minimum for the date. 1-7 In 1978...the temperature reached 90 degrees or more on seven consecutive days with the highest temperature...94 degrees... recorded on both the 4th and 6th. 1-30 In 2020...a worsening drought that started in the spring and continued through September. Outside of an early season snow on the 8th...the month of September was another unseasonably warm and dry period. The combination of hot...mostly dry conditions...and critically dry fuels... resulted in a continuation and rapid expansion of several massive wildfires. The Cameron Peak fire...which became the largest in the state`s history started on August 13th...and continued through September. As a result...very poor air quality continued to impact Denver and the entire Front Range. Denver recorded the most days ever with a high temperature of 90 degrees or better; 75 days. The last of which was 91 degrees on the 24th. The previous record was 73 days set in 2012. $$