Heat in Colorado
Every heat event the National Weather Service has filed in Colorado, year by year, with the most significant episodes. Heat below excessive heat criteria that still caused deaths, injuries or significant impacts.
The most significant on the map
The most significant heat episodes in Colorado.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The record
- Events
- 10
- Deaths
- 0
- Injuries
- 0
- Damage
- None recorded
Every year
The most significant
Ranked by deaths, injuries, damage and size together.
- Heat in Colorado, July 7 to 12, 2021A large ridge of high pressure dominated the western United States for several days. This resulted in scorching heat and dry weather across the lower elevations of western Colorado. Conditions were exceptionally dry which translated to single digit humidity at the surface.
- Heat in Colorado, September 17, 2000The record high temperature of 95 at Denver International Airport broke three record extremes. The afternoon maximum temperature broke the previous record for the day of 94 set in 1895.
- Heat in Colorado, September 16, 2000The record high temperature of 95 at Denver International Airport established or tied three different record extremes.
- Heat in Colorado, July 1 to 15, 2000July 15th marked the end of a near record hot streak for the Denver area. The maximum high temperature at Denver International Airport equalled or exceeded the 90 degree mark for 17 consecutive days, from June 29th-July 15th; one day short of tying the all time record.
- Heat in Colorado, June 29 to 30, 2000June 29th marked the beginning of a near record hot streak for the Denver area. The maximum high temperature at Denver International Airport equalled or exceeded the 90 degree mark for 17 consecutive days, from June 29th-July 15th; one day short of tying the all time record.
- Heat in Colorado, June 1 to 30, 2012June 2012 was the hottest June in Denver since weather records began back in 1872. There were a total of seventeen 90 degree days in the month of June. The highlight of month was a stretch of five consecutive 100 degree days from the 22nd to the 26th.
More
Sources
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.