Storm History: Jefferson County, Colorado
Every storm the National Weather Service has filed in Jefferson County, Colorado: floods, hail, damaging wind, tornadoes, winter storms, heat and the rest, with the most serious on record. Events filed by forecast zone count for every county the zone covers.
The record
- Events
- 1,870
- Deaths
- 39
- Injuries
- 220
- Damage
- $4.9 billion
- Episodes
- 1,017
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
Every year
By kind of event
Counted under the kind that heads each episode.
| Kind of event | Events | Deaths | Injuries | Damage |
|---|---|---|---|---|
| Winter Storm | 394 | 2 | 4 | |
| High Wind | 311 | 3 | 19 | $26 million |
| Hail | 275 | 1 | 4 | $132,000 |
| Tornado | 265 | 1 | 150 | $353 million |
| Heavy Snow | 187 | 0 | 0 | |
| Winter Weather | 140 | 0 | 3 | |
| Flash Flood | 105 | 3 | 3 | $2.4 billion |
| Blizzard | 59 | 0 | 0 | $31 million |
| Thunderstorm Wind | 30 | 0 | 0 | |
| Avalanche | 29 | 20 | 14 | |
| Wildfire | 17 | 7 | 12 | $2.1 billion |
| Lightning | 16 | 2 | 10 | $1.3 million |
| Drought | 10 | 0 | 0 | |
| Strong Wind | 7 | 0 | 1 | $20,000 |
| Flood | 6 | 0 | 0 | $25,000 |
| Extreme Cold/Wind Chill | 6 | 0 | 0 | |
| Cold/Wind Chill | 6 | 0 | 0 | |
| Dust Storm | 3 | 0 | 0 | |
| Funnel Cloud | 2 | 0 | 0 | |
| Frost/Freeze | 1 | 0 | 0 | |
| Dust Devil | 1 | 0 | 0 | $5,000 |
The deadliest
- Avalanche, April 20, 2013
- Wildfire, March 26, 2012
- Wildfire, December 30, 2021
- Flash Flood, July 12, 1996
- Avalanche, February 14, 2021
- Avalanche, January 7, 2023
- Flash Flood, July 20, 2019
- Lightning, July 27, 2007
- Tornado, June 9, 1987
- High Wind, October 29, 1996
- Lightning, May 29, 2004
- Avalanche, March 24, 2005
- Avalanche, May 20, 2005
- Avalanche, December 22, 2005
- High Wind, December 31, 2011
- Avalanche, January 22, 2012
- Avalanche, February 10, 2014
- Avalanche, December 31, 2014
- Hail, July 19, 2016
- High Wind, April 17, 2018
The costliest
Damage within this county, in the dollars of its year.
- Flash Flood, May 8, 2017
- Wildfire, December 30, 2021
- Tornado, July 20, 2009
- Flash Flood, August 11, 1997
- Wildfire, October 17, 2020
- Blizzard, March 17, 2003
- High Wind, April 9, 1999
- Wildfire, June 12, 2000
- Wildfire, March 26, 2012
- Wildfire, April 1, 2012
- Flash Flood, September 11, 2013
- High Wind, December 29, 2008
- High Wind, February 2, 1999
- Tornado, June 3, 1981
- Wildfire, May 20, 2002
- High Wind, January 7, 2009
- Lightning, May 30, 2001
- Flash Flood, July 12, 1996
- High Wind, December 20, 2004
- Flash Flood, July 21, 2009
The largest hail
The largest stone in each episode, which may have fallen in a neighboring county of the same episode.
- Flash Flood, July 13, 2011
- Hail, April 20, 2005
- Hail, May 20, 2024
- Hail, June 5, 2018
- Hail, June 8, 2026
- Flash Flood, June 18, 2018
- Hail, August 9, 2009
- Flash Flood, July 10, 2002
- Tornado, June 24, 2026
- Hail, June 17, 2025
- Hail, May 30, 2024
- Flash Flood, May 8, 2017
- Hail, May 20, 2014
- Hail, June 10, 1999
- Hail, May 7, 1977
The strongest tornadoes
Every episode, newest first
- Hail, June 26, 2026
- Tornado, June 24, 2026
- Hail, June 8, 2026
- Winter Storm, May 17, 2026
- Winter Storm, May 5, 2026
- Winter Weather, April 14, 2026
- High Wind, March 16, 2026
- Strong Wind, March 14, 2026
- High Wind, March 14, 2026
- High Wind, March 12, 2026
- Winter Storm, March 5, 2026
- Wildfire, February 24, 2026
- Heavy Snow, February 24, 2026
- Wildfire, February 17, 2026
- High Wind, December 19, 2025
- High Wind, December 17, 2025
- High Wind, December 11, 2025
- High Wind, December 9, 2025
- Winter Storm, December 5, 2025
- Winter Weather, December 3, 2025
- High Wind, October 20, 2025
- Hail, August 23, 2025
- Hail, August 14, 2025
- Tornado, August 10, 2025
- Wildfire, July 12, 2025
- Hail, July 10, 2025
- Tornado, July 6, 2025
- Hail, June 17, 2025
- Strong Wind, May 15, 2025
- Hail, May 14, 2025
- Winter Weather, May 6, 2025
- Winter Weather, April 17, 2025
- Strong Wind, March 24, 2025
- High Wind, March 3, 2025
- Avalanche, February 22, 2025
- Winter Storm, February 20, 2025
- Winter Storm, February 16, 2025
- Winter Storm, February 14, 2025
- High Wind, February 2, 2025
- Winter Weather, January 24, 2025
- Extreme Cold/Wind Chill, January 17, 2025
- Winter Weather, January 10, 2025
- Winter Weather, January 6, 2025
- Winter Storm, January 1, 2025
- High Wind, December 30, 2024
- Winter Storm, December 29, 2024
- Winter Storm, December 28, 2024
- High Wind, December 18, 2024
- Winter Weather, December 9, 2024
- Winter Storm, November 26, 2024
- Strong Wind, November 19, 2024
- Winter Storm, November 5, 2024
- Winter Storm, November 5, 2024
- Winter Storm, November 3, 2024
- Winter Weather, October 21, 2024
- Thunderstorm Wind, September 17, 2024
- Wildfire, August 1, 2024
- Wildfire, August 1, 2024
- Wildfire, July 30, 2024
- Wildfire, July 30, 2024
- Hail, June 29, 2024
- High Wind, June 27, 2024
- Thunderstorm Wind, June 7, 2024
- Hail, May 30, 2024
- Hail, May 25, 2024
- Hail, May 20, 2024
- Heavy Snow, May 11, 2024
- High Wind, May 6, 2024
- Heavy Snow, April 26, 2024
- High Wind, April 15, 2024
- High Wind, April 6, 2024
- Winter Weather, March 23, 2024
- Winter Storm, March 13, 2024
- Winter Storm, March 7, 2024
- Winter Storm, March 2, 2024
- Winter Weather, February 27, 2024
- Winter Weather, February 16, 2024
- Winter Storm, February 9, 2024
- Winter Storm, February 2, 2024
- Winter Storm, January 17, 2024
- High Wind, January 16, 2024
- Winter Storm, January 11, 2024
- Winter Storm, January 9, 2024
- Winter Weather, January 7, 2024
- Winter Weather, December 23, 2023
- High Wind, December 10, 2023
- Winter Weather, December 8, 2023
- High Wind, December 7, 2023
- Winter Storm, December 1, 2023
- Winter Storm, November 23, 2023
- Winter Weather, November 8, 2023
- Winter Storm, October 27, 2023
- Hail, August 6, 2023
- Flash Flood, August 1, 2023
- Tornado, July 31, 2023
- Flood, July 8, 2023
- Flash Flood, June 29, 2023
- Tornado, June 22, 2023
- Tornado, June 17, 2023
- Tornado, May 26, 2023
- Tornado, May 24, 2023
- Winter Storm, May 10, 2023
- Avalanche, April 29, 2023
- Winter Weather, April 27, 2023
- Winter Storm, April 25, 2023
- Winter Weather, April 14, 2023
- Avalanche, April 11, 2023
- Winter Storm, April 3, 2023
- High Wind, March 31, 2023
- Winter Storm, March 27, 2023
- Winter Storm, March 21, 2023
- Winter Weather, March 10, 2023
- Winter Storm, February 22, 2023
- High Wind, February 19, 2023
- Winter Storm, February 15, 2023
- Winter Storm, January 29, 2023
- Winter Storm, January 26, 2023
- Winter Storm, January 17, 2023
- Avalanche, January 7, 2023
- Avalanche, December 31, 2022
- Winter Storm, December 30, 2022
- Winter Storm, December 28, 2022
- High Wind, December 27, 2022
- Avalanche, December 26, 2022
- Cold/Wind Chill, December 21, 2022
- Blizzard, December 12, 2022
- High Wind, December 1, 2022
- Winter Storm, November 17, 2022
- Winter Weather, November 14, 2022
- High Wind, November 4, 2022
- Winter Weather, November 3, 2022
- Winter Weather, October 26, 2022
- High Wind, October 23, 2022
- Hail, August 20, 2022
- Flash Flood, July 27, 2022
- Winter Weather, May 31, 2022
- Winter Weather, May 29, 2022
- Winter Storm, May 23, 2022
- Winter Storm, May 19, 2022
- Winter Weather, May 3, 2022
- High Wind, April 29, 2022
- Winter Weather, April 24, 2022
- High Wind, April 22, 2022
- Winter Weather, April 16, 2022
- Winter Storm, April 11, 2022
- High Wind, April 4, 2022
- Winter Weather, March 29, 2022
- Wildfire, March 26, 2022
- Winter Storm, March 16, 2022
- Winter Storm, March 8, 2022
- Winter Weather, March 4, 2022
- Winter Storm, February 16, 2022
- Winter Weather, February 11, 2022
- High Wind, February 10, 2022
- Winter Storm, February 1, 2022
- Winter Weather, January 24, 2022
- Winter Weather, January 21, 2022
- Winter Storm, January 4, 2022
- High Wind, January 4, 2022
- Wildfire, December 30, 2021
- Winter Storm, December 30, 2021
- Winter Storm, December 23, 2021
- High Wind, December 15, 2021
- Drought, December 1, 2021
- High Wind, November 14, 2021
- Drought, November 1, 2021
- Hail, September 3, 2021
- Tornado, August 19, 2021
- Winter Storm, April 19, 2021
- Winter Storm, April 14, 2021
- Winter Storm, March 21, 2021
- Blizzard, March 12, 2021
- Winter Storm, February 24, 2021
- Winter Weather, February 17, 2021
- Avalanche, February 14, 2021
- Winter Weather, February 10, 2021
- Winter Weather, February 6, 2021
- Winter Storm, February 4, 2021
- Winter Weather, January 17, 2021
- Dust Storm, January 13, 2021
- Avalanche, December 26, 2020
- Winter Weather, December 22, 2020
- High Wind, December 20, 2020
- Winter Weather, November 23, 2020
- High Wind, November 13, 2020
- Heavy Snow, October 23, 2020
- Wildfire, October 17, 2020
- High Wind, October 16, 2020
- High Wind, October 14, 2020
- High Wind, October 11, 2020
- Winter Weather, September 7, 2020
- Hail, August 5, 2020
- Thunderstorm Wind, June 25, 2020
- Thunderstorm Wind, June 24, 2020
- Thunderstorm Wind, June 6, 2020
- Winter Storm, April 15, 2020
- Heavy Snow, April 11, 2020
- Blizzard, March 19, 2020
- Winter Storm, February 15, 2020
- Winter Storm, February 6, 2020
- Winter Weather, February 3, 2020
- High Wind, January 17, 2020
- High Wind, January 6, 2020
- High Wind, January 6, 2020
- High Wind, January 4, 2020
- Winter Weather, January 1, 2020
- Winter Storm, December 12, 2019
- High Wind, November 29, 2019
- Blizzard, November 25, 2019
- Winter Storm, October 29, 2019
- Winter Weather, October 27, 2019
- Winter Storm, October 23, 2019
- Winter Storm, October 19, 2019
- Winter Weather, October 9, 2019
- Tornado, September 6, 2019
- Flash Flood, August 21, 2019
- Flash Flood, July 20, 2019
- Hail, July 5, 2019
- Tornado, July 4, 2019
- Winter Storm, May 28, 2019
- Winter Storm, April 29, 2019
- Winter Storm, April 10, 2019
- Winter Storm, March 6, 2019
- Winter Storm, March 1, 2019
- Heavy Snow, February 22, 2019
- High Wind, February 13, 2019
- Winter Weather, February 5, 2019
- Blizzard, January 21, 2019
- Winter Storm, January 17, 2019
- Heavy Snow, January 11, 2019
- Winter Weather, December 18, 2018
- Winter Storm, November 22, 2018
- Winter Weather, November 11, 2018
- Winter Storm, November 4, 2018
- High Wind, November 2, 2018
- Winter Weather, October 30, 2018
- Winter Weather, October 13, 2018
- Winter Weather, October 9, 2018
- Winter Weather, October 8, 2018
- Hail, August 14, 2018
- Thunderstorm Wind, August 3, 2018
- Tornado, July 27, 2018
- Flash Flood, July 24, 2018
- Tornado, June 19, 2018
- Flash Flood, June 18, 2018
- Hail, June 5, 2018
- Tornado, May 28, 2018
- Hail, May 14, 2018
- High Wind, April 17, 2018
- Winter Storm, April 5, 2018
Earlier years, state by state:
More
Tornadoes in Jefferson CountyEvery warning in Jefferson County since 1986Every county in Colorado
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.