Storm History: Clackamas County, Oregon
Every storm the National Weather Service has filed in Clackamas County, Oregon: 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
- 135
- Deaths
- 25
- Injuries
- 10
- Damage
- $24 million
- Episodes
- 97
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 |
|---|---|---|---|---|
| Flood | 37 | 0 | 2 | $5.5 million |
| Debris Flow | 16 | 1 | 0 | $18 million |
| Hail | 15 | 1 | 3 | $60,000 |
| Heavy Rain | 12 | 1 | 0 | $15,000 |
| Thunderstorm Wind | 11 | 2 | 0 | $15,000 |
| Tornado | 9 | 0 | 0 | $219,000 |
| Lightning | 8 | 0 | 3 | $76,000 |
| Heavy Snow | 7 | 0 | 0 | |
| Frost/Freeze | 6 | 0 | 0 | |
| Ice Storm | 4 | 0 | 0 | |
| Excessive Heat | 3 | 7 | 0 | |
| Flash Flood | 2 | 1 | 1 | |
| Heat | 2 | 11 | 0 | |
| Funnel Cloud | 1 | 0 | 0 | |
| High Wind | 1 | 0 | 0 | |
| Cold/Wind Chill | 1 | 1 | 1 |
The deadliest
- Heat, July 5, 2024
- Excessive Heat, June 13, 2026
- Excessive Heat, August 10, 2025
- Excessive Heat, August 22, 2025
- Debris Flow, January 1, 2009
- Hail, April 14, 2022
- Thunderstorm Wind, January 15, 1996
- Thunderstorm Wind, May 2, 2009
- Flash Flood, August 12, 2014
- Heavy Rain, January 18, 2019
- Cold/Wind Chill, February 2, 2025
The costliest
Damage within this county, in the dollars of its year.
- Debris Flow, January 16, 2011
- Flood, November 6, 2006
- Flood, January 18, 2012
- Flood, December 7, 2015
- Debris Flow, January 1, 2009
- Flood, December 17, 2015
- Lightning, August 20, 1998
- Tornado, October 9, 2000
- Tornado, October 26, 2009
- Debris Flow, February 27, 2022
- Hail, April 14, 2022
- Tornado, October 22, 2022
- Tornado, October 9, 2000
- Tornado, October 26, 1984
- Heavy Rain, October 17, 2016
- Thunderstorm Wind, June 26, 2019
- Tornado, October 3, 1998
- Hail, May 20, 2007
- Hail, June 29, 2008
- Flood, February 23, 2025
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
- Lightning, June 27, 2026
- Excessive Heat, June 13, 2026
- Heavy Snow, January 6, 2026
- Excessive Heat, August 22, 2025
- Excessive Heat, August 10, 2025
- Debris Flow, March 14, 2025
- Flood, February 23, 2025
- Heavy Snow, February 15, 2025
- Ice Storm, February 13, 2025
- Cold/Wind Chill, February 2, 2025
- Heavy Snow, December 28, 2024
- Heavy Snow, December 25, 2024
- Heavy Snow, December 15, 2024
- Heavy Snow, November 17, 2024
- Hail, August 17, 2024
- Heat, July 5, 2024
- Heavy Snow, April 28, 2024
- Frost/Freeze, April 16, 2024
- Frost/Freeze, April 4, 2024
- High Wind, March 9, 2024
- Flood, June 18, 2023
- Debris Flow, November 4, 2022
- Tornado, October 22, 2022
- Debris Flow, June 11, 2022
- Heavy Rain, June 10, 2022
- Lightning, May 19, 2022
- Hail, April 14, 2022
- Debris Flow, February 27, 2022
- Debris Flow, January 10, 2021
- Debris Flow, December 19, 2020
- Flood, September 17, 2020
- Tornado, June 13, 2020
- Thunderstorm Wind, June 26, 2019
- Debris Flow, April 7, 2019
- Heavy Rain, January 18, 2019
- Flood, October 21, 2017
- Heavy Rain, February 5, 2017
- Heavy Rain, October 17, 2016
- Funnel Cloud, July 10, 2016
- Hail, April 20, 2016
- Flood, December 17, 2015
- Flood, December 12, 2015
- Flood, December 7, 2015
- Flood, December 20, 2014
- Heavy Rain, November 5, 2014
- Flash Flood, August 12, 2014
- Hail, August 10, 2013
- Hail, August 9, 2013
- Flood, November 19, 2012
- Flood, April 1, 2012
- Flood, March 29, 2012
- Flood, March 15, 2012
- Flood, January 18, 2012
- Lightning, October 5, 2011
- Thunderstorm Wind, June 5, 2011
- Debris Flow, January 16, 2011
- Tornado, October 26, 2009
- Hail, June 9, 2009
- Tornado, June 4, 2009
- Thunderstorm Wind, May 2, 2009
- Debris Flow, January 1, 2009
- Hail, June 29, 2008
- Flood, December 1, 2007
- Hail, May 20, 2007
- Flood, January 2, 2007
- Flood, December 14, 2006
- Flood, November 6, 2006
- Heavy Rain, November 2, 2006
- Hail, September 14, 2006
- Hail, May 21, 2006
- Debris Flow, January 10, 2006
- Flood, December 28, 2005
- Thunderstorm Wind, June 19, 2005
- Lightning, May 20, 2005
- Thunderstorm Wind, May 18, 2005
- Thunderstorm Wind, April 22, 2005
- Flash Flood, August 24, 2004
- Thunderstorm Wind, July 13, 2004
- Thunderstorm Wind, July 13, 2004
- Lightning, May 17, 2004
- Heavy Rain, January 27, 2004
- Heavy Rain, December 12, 2003
- Hail, August 5, 2003
- Lightning, April 10, 2003
- Heavy Rain, March 20, 2003
- Heavy Rain, March 7, 2003
- Heavy Rain, January 29, 2003
- Heavy Rain, August 22, 2001
- Tornado, October 9, 2000
- Tornado, October 9, 2000
- Hail, August 4, 1999
- Tornado, October 3, 1998
- Lightning, August 20, 1998
- Hail, May 17, 1996
- Thunderstorm Wind, January 15, 1996
- Tornado, October 26, 1984
- Tornado, April 12, 1957
More
Tornadoes in Clackamas CountyEvery warning in Clackamas County since 1986Every county in Oregon
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.