Storm History: Contra Costa County, California
Every storm the National Weather Service has filed in Contra Costa County, California: 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
- 477
- Deaths
- 15
- Injuries
- 27
- Damage
- $65 million
- Episodes
- 186
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 |
|---|---|---|---|---|
| Debris Flow | 98 | 1 | 4 | $11 million |
| High Wind | 71 | 3 | 3 | $1.9 million |
| Flash Flood | 69 | 2 | 0 | $4.7 million |
| Flood | 48 | 2 | 3 | $45 million |
| Wildfire | 46 | 2 | 0 | $104,000 |
| Strong Wind | 43 | 0 | 5 | $1.2 million |
| Heat | 28 | 2 | 12 | $30,000 |
| Dense Fog | 19 | 0 | 0 | |
| Tornado | 13 | 1 | 0 | $425,000 |
| Hail | 9 | 0 | 0 | |
| Excessive Heat | 7 | 0 | 0 | |
| Dense Smoke | 6 | 0 | 0 | |
| Coastal Flood | 6 | 0 | 0 | |
| Heavy Rain | 4 | 0 | 0 | $105,000 |
| Frost/Freeze | 3 | 0 | 0 | $400,000 |
| Storm Surge/Tide | 2 | 0 | 0 | $160,000 |
| Cold/Wind Chill | 2 | 2 | 0 | |
| Winter Weather | 1 | 0 | 0 | |
| High Surf | 1 | 0 | 0 | $10,000 |
| Tsunami | 1 | 0 | 0 | $50,000 |
The deadliest
The costliest
Damage within this county, in the dollars of its year.
- Flood, December 31, 2005
- Flood, January 1, 2006
- Debris Flow, April 6, 2006
- Flash Flood, October 13, 2009
- Flash Flood, March 22, 2011
- High Wind, December 1, 2011
- Strong Wind, October 24, 2016
- Flood, January 20, 2010
- Frost/Freeze, January 6, 2007
- Flash Flood, December 2, 2012
- Tornado, December 5, 1998
- Storm Surge/Tide, February 15, 2011
- Flash Flood, February 13, 2000
- Tornado, March 16, 2011
- Wildfire, November 20, 2013
- Flood, January 18, 2010
- High Wind, April 14, 2009
- High Wind, December 30, 2014
- Debris Flow, January 19, 2012
- Debris Flow, March 13, 2012
The largest hail
The largest stone in each episode, which may have fallen in a neighboring county of the same episode.
Every episode, newest first
- Strong Wind, June 28, 2026
- High Wind, May 16, 2026
- Heat, March 16, 2026
- Flash Flood, January 2, 2026
- Coastal Flood, January 1, 2026
- Flash Flood, December 21, 2025
- Flood, November 13, 2025
- Wildfire, May 22, 2025
- Debris Flow, February 13, 2025
- Flood, February 3, 2025
- Flood, December 26, 2024
- Flood, November 19, 2024
- Flood, April 4, 2024
- Flash Flood, March 6, 2024
- Flood, March 1, 2024
- Flood, February 17, 2024
- Flood, February 3, 2024
- Flood, January 20, 2024
- Flood, March 28, 2023
- High Wind, March 21, 2023
- High Wind, March 14, 2023
- Flood, March 9, 2023
- High Wind, February 21, 2023
- Debris Flow, January 4, 2023
- Flood, December 27, 2022
- Cold/Wind Chill, December 2, 2022
- Heat, September 4, 2022
- Heat, August 16, 2022
- Heat, June 21, 2022
- Heat, June 10, 2022
- Wildfire, May 20, 2022
- Strong Wind, May 2, 2022
- Strong Wind, April 11, 2022
- Strong Wind, March 4, 2022
- Excessive Heat, July 9, 2021
- Wildfire, June 17, 2021
- Strong Wind, June 7, 2021
- Strong Wind, May 19, 2021
- Strong Wind, April 4, 2021
- Hail, March 15, 2021
- Strong Wind, February 24, 2021
- Debris Flow, January 26, 2021
- Frost/Freeze, January 24, 2021
- Wildfire, January 18, 2021
- Coastal Flood, January 11, 2021
- Coastal Flood, December 13, 2020
- High Wind, December 7, 2020
- Strong Wind, November 7, 2020
- Strong Wind, November 6, 2020
- High Wind, October 25, 2020
- Excessive Heat, September 6, 2020
- Excessive Heat, August 14, 2020
- Wildfire, July 20, 2020
- Wildfire, July 4, 2020
- Wildfire, June 5, 2020
- Flood, April 5, 2020
- Strong Wind, February 9, 2020
- Strong Wind, February 2, 2020
- Debris Flow, January 16, 2020
- Dense Fog, December 8, 2019
- Debris Flow, December 6, 2019
- Flood, November 26, 2019
- Dense Fog, November 15, 2019
- Wildfire, October 27, 2019
- Wildfire, October 9, 2019
- Heat, August 14, 2019
- Wildfire, August 7, 2019
- Excessive Heat, June 10, 2019
- Heat, April 24, 2019
- Flood, March 5, 2019
- Debris Flow, February 25, 2019
- Hail, February 17, 2019
- Debris Flow, February 12, 2019
- Debris Flow, February 9, 2019
- Hail, January 20, 2019
- Flash Flood, January 16, 2019
- High Wind, January 8, 2019
- Tornado, January 5, 2019
- Strong Wind, December 31, 2018
- Dense Fog, December 20, 2018
- Dense Fog, December 10, 2018
- Dense Fog, December 8, 2018
- Debris Flow, November 28, 2018
- Debris Flow, November 21, 2018
- Dense Smoke, November 14, 2018
- Dense Smoke, November 8, 2018
- Hail, April 16, 2018
- Debris Flow, April 6, 2018
- Debris Flow, March 1, 2018
- Hail, February 26, 2018
- Hail, February 22, 2018
- Debris Flow, January 8, 2018
- Strong Wind, December 16, 2017
- Flood, November 27, 2017
- Heat, June 18, 2017
- Strong Wind, May 9, 2017
- Debris Flow, April 6, 2017
- Debris Flow, March 4, 2017
- Flash Flood, February 20, 2017
- Debris Flow, February 17, 2017
- Flash Flood, February 9, 2017
- Flash Flood, February 6, 2017
- Flash Flood, January 10, 2017
- Flash Flood, January 7, 2017
- Strong Wind, October 24, 2016
- Strong Wind, December 13, 2015
- Debris Flow, February 6, 2015
- High Wind, December 30, 2014
- Flash Flood, February 28, 2014
- Wildfire, November 20, 2013
- High Wind, October 27, 2013
- Wildfire, October 4, 2013
- High Wind, April 8, 2013
- Flash Flood, December 2, 2012
- Flash Flood, November 28, 2012
- Strong Wind, March 17, 2012
- Debris Flow, March 13, 2012
- Debris Flow, January 19, 2012
- High Wind, December 1, 2011
- High Wind, November 30, 2011
- Strong Wind, November 18, 2011
- Heavy Rain, June 4, 2011
- Flash Flood, March 22, 2011
- Tornado, March 16, 2011
- Tsunami, March 11, 2011
- Debris Flow, February 25, 2011
- Storm Surge/Tide, February 15, 2011
- High Surf, January 20, 2011
- Debris Flow, December 28, 2010
- Debris Flow, December 18, 2010
- Heavy Rain, October 24, 2010
- Flood, April 11, 2010
- Strong Wind, February 26, 2010
- Tornado, January 23, 2010
- Strong Wind, January 22, 2010
- Flood, January 20, 2010
- Debris Flow, January 19, 2010
- Flood, January 18, 2010
- Winter Weather, December 7, 2009
- High Wind, October 27, 2009
- Flash Flood, October 13, 2009
- Strong Wind, September 29, 2009
- Heat, June 27, 2009
- Heat, May 17, 2009
- High Wind, April 14, 2009
- Debris Flow, February 16, 2009
- Flood, February 15, 2009
- Strong Wind, January 12, 2009
- Strong Wind, December 25, 2008
- Heavy Rain, December 15, 2008
- Flash Flood, January 4, 2008
- Heat, July 25, 2007
- Frost/Freeze, January 6, 2007
- High Wind, December 27, 2006
- Heat, July 22, 2006
- Heat, July 21, 2006
- Debris Flow, April 6, 2006
- High Wind, February 27, 2006
- High Wind, February 27, 2006
- High Wind, February 27, 2006
- Flood, January 1, 2006
- High Wind, December 31, 2005
- High Wind, December 31, 2005
- Flood, December 31, 2005
- High Wind, December 18, 2005
- High Wind, December 18, 2005
- High Wind, December 18, 2005
- High Wind, December 1, 2005
- High Wind, December 1, 2005
- High Wind, December 1, 2005
- Flash Flood, December 13, 2002
- Flash Flood, February 13, 2000
- Tornado, December 5, 1998
- Flash Flood, February 2, 1998
- Tornado, February 2, 1998
- Flash Flood, January 25, 1997
- Flash Flood, January 22, 1997
- Flash Flood, January 2, 1997
- Flash Flood, January 2, 1997
- Flash Flood, January 1, 1997
- Flash Flood, January 1, 1997
- Flash Flood, January 1, 1997
- Flood, December 22, 1996
- Tornado, February 7, 1994
- Tornado, September 18, 1989
- Hail, April 29, 1983
More
Tornadoes in Contra Costa CountyEvery warning in Contra Costa County since 1986Every county in California
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.