Heavy Rain in Colorado

Events

792

Deaths

2

Injuries

6

Damage

$797,000

• Tornadoes and Flash Flood in Colorado, June 22 to 23, 2023EF3 · 24 eventsExceptionally severe weather continues over southern Colorado with the continued deluge of moist air coming from the Pacific and remnant moisture from previous moisture from widespread heavy rainfall.
• Tornado and Hail in Colorado, May 14, 20071 death · 1 injured · EF0 · 20 eventsSevere thunderstorms producing large hail, very heavy rain and tornadoes impacted the Urban Corridor and adjacent plains. Heavy rain associated with a severe thunderstorm caused flooding along a small tributary draining into the South Platte River.
• Hail and Lightning Strike in Colorado, July 19, 20161 death · 1 injured · 0.88 in hail · 3 eventsA strong thunderstorm produced hail up to nickel size in central Jefferson County. Very heavy rainfall was observed across central and southern parts of Denver. Minor flooding was observed when a thunderstorm dropped around 1.5 inches of rainfall in 30 minutes.
• Heavy Rain in Colorado, August 1, 20061 death · 1 eventHeavy rain caused flooding of streets, highways, and some properties from Clifton to Palisade. Minor flooding of residential streets and portions of Interstate 70 occurred between the Palisade and Clifton exits.
• Tornadoes and Flash Flood in Colorado, June 24 to 25, 2026$100,000 · 2.75 in hail · 57 eventsNumerous thunderstorms tracked across eastern Colorado during the late afternoon and evening hours of the 24th. Hail, strong winds, and two tornadoes were observed. In addition heavy rainfall in the Evergreen area produced flash flooding late on the 24th and early on the 25th.
• Flash Flooding and Debris Flows in Colorado, October 6 to 7, 2006$1.0 million · 7 eventsMoist southerly flow ahead of a low pressure system over the southwestern states brought copius amounts of rainfall to much of western Colorado. The Four Corners area and west central Colorado received the brunt of the heavy precipitation.
• Flash Flooding and Flooding in Colorado, June 10 to 12, 20232 in hail · 89 eventsYet another closed low pressure center formed over southern California advecting Pacific based moisture towards southern Colorado. There was a record 2 day amount of rain that fell at the City of Colorado Springs Airport.
• Tornadoes and Flash Flood in Colorado, June 13 to 15, 1997$54,000 · F1 · 28 eventsHeavy rain, large hail, damaging thunderstorms winds and tornadoes ravaged southern portions of Elbert and southwestern Lincoln counties through the evening hours.
• Tornadoes and Flash Flooding in Colorado, July 4 to 8, 20233 in hail · 87 eventsResidual moisture from an incredibly anomalously wet June continues to moisten the lower levels aiding in ample amounts of instability.
• Heavy Rain in Colorado, July 29, 1998$400,000 · 1 eventHeavy rainfall estimated from radar to be about two inches within an hour fell in the downtown area of Grand Junction. Water accumulated up to three feet deep in places, resulting in flooding of many homes and businesses, as well as some damage to streets.
• Flash Flooding and Heavy Rain in Colorado, August 1, 202176 eventsWidespread moderate to heavy rainfall occurred across much of the eastern mountains and adjacent locations along the I-25 corridor on this day. Rainfall as high as 2 to 5 inches was observed in many locations, with flash flooding occurring across parts of Pueblo county.
• Flash Flood and Heavy Rain in Colorado, July 15, 2014$250,000 · 2 eventsMonsoonal moisture flowed up into southwest Colorado and resulted in some thunderstorms that produced heavy rainfall.
• Flash Flood and Lightning Strike in Colorado, July 18, 2011$230,000 · 3 eventsThunderstorms produced very heavy rain and continuous lightning over Summit County. The historic rainstorm in the town of Breckenridge produced 3.17 inches of rain at local weather station, most of the rain fell in less than 3 hours.
• Flash Flooding and Debris Flows in Colorado, July 18, 2013$153,000 · 0.75 in hail · 9 eventsThe active monsoon pattern continued to bring heavy rainfall to portions of western Colorado.
• Flash Flooding and Hail in Colorado, September 22 to 23, 2013$85,000 · 2.5 in hail · 20 eventsA negatively tilted upper trough and associated cold front swung across the 4 Corners region and incorporated monsoonal moisture to produce strong thunderstorms with large hail and heavy rainfall across southwest Colorado.
• Tornado and Flash Flooding in Colorado, July 17 to 21, 2023EF1 · 35 eventsAn upper level high pressure center was located over central Arizona and central New Mexico which resulted in a favorable pattern for efficient diurnal wind fluctuations including upslope oriented winds towards WFO Pueblo's eastern mountains.
• Flash Flooding and Heavy Rain in Colorado, July 29, 2014$125,000 · 4 eventsThunderstorms with heavy rain produced flash flooding over northeast Larimer and west central Weld Counties. Localized street flooding was also observed in south Denver.
• Flash Flooding and Hail in Colorado, July 29 to 31, 20231.5 in hail · 53 eventsSurface flow from the east advected amply amounts of low level moisture which created another event where heavy rains, hail, and gusty winds were observed. Weak perturbations in the upper flow sparked thunderstorms across the region.
• Hail and Damaging Wind in Colorado, July 21 to 22, 2010$100,000 · 52 kt wind · 4 eventsA severe thunderstorm caused minor tree damage and knocked down a power line in and around Berthoud. Lightning also sparked a fire to a home in Loveland causing extensive damage.
• Flash Flooding and Debris Flows in Colorado, September 11 to 13, 2025$56,000 · 1 in hail · 16 eventsThe period between the 11th and 13th of September had a relatively unique meteorological setup for western Colorado and eastern Utah.
• Flash Flooding and Heavy Rain in Colorado, July 27, 2010$101,000 · 3 eventsAbundant monsoonal moisture combined with daytime heating to generate heavy rain producing thunderstorms.
• Flash Flooding and Heavy Rain in Colorado, July 7, 2012$90,000 · 4 eventsHeavy rain produced flash flooding in and near the Front Range Foothills. In central Larimer County, heavy rain from nearly stationary thunderstorms caused flash flooding in the High Park burn scar.
• Heavy Rain in Colorado, June 27, 1996$100,000 · 1 eventA heavy downpour of rain and hail caused the roof of a video and book store to collapse. The basement of the Justice Building was flooded and traffic was interrupted by flooded streets. Marble size hail accumulated up to a half foot in depth.
• Tornado and Hail in Colorado, September 6, 2019$50,000 · EF0 · 8 eventsSevere thunderstorms produced a combination of large hail and heavy rain over parts of Arapahoe, Clear Creek, Douglas and Jefferson counties.
• Lightning Strike and Heavy Rain in Colorado, July 17, 2013$60,000 · 2 eventsAn intense late night thunderstorm produced locally heavy rainfall and a lot of lightning in the Grand Valley, including a lightning bolt that caused significant damage to a building.

Heavy Rain everywhereEvery kind of event in Colorado

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24.