States › Utah › Washington County › Flood
Flood in Washington County, Utah
292 floods and flash floods events in the NCEI Storm Events record, 1950 to 2026. Event types counted: Flood, Flash Flood, Coastal Flood, Lakeshore Flood.
NCEI notes that Storm Data is compiled from a variety of sources including the National Weather Service, other federal, state and local agencies, the media and the public; that property and crop damage figures are estimates; and that some events are recorded by NWS forecast zone rather than by county. FEMA notes that NFIP claim records are redacted and aggregated to protect the privacy of policyholders. Storm records through 30 Jun 2026.
NCEI records 292 flood events in Washington County, Utah, between 1950 and 2026, spread over 29 years.
August is the busiest month, with 103 of the recorded events. The last 20 years account for 237 events against 55 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 20.9% of the 1,399 flood events recorded in Utah; its 12.0 per 100 square miles compares with 1.7 statewide.
NCEI attributes 26 deaths in the county to floods and flash floods.
Compared with Utah
| Measure | Washington County | Utah | US |
|---|---|---|---|
| Flood events since 1950 | 292 | 1,399 | 183,559 |
| Per 100 square miles | 12.0 | 1.7 | 5.2 |
| Per 10,000 residents | 15.3 | 4.2 | 5.5 |
| Deaths recorded | 26 | 49 | 2,961 |
| Busiest month | August | August | June |
By year
Seasonality
4Feb
1Mar
10Apr
1May
3Jun
5Jul
90Aug
103Sep
46Oct
20Nov
5Dec
4
Recorded events
The 177 events kept for this page are the 120 most recent plus the 80 with the most damage, deaths or injuries out of 292. Magnitude is hail size, tornado rating or wind speed as recorded.
| Date | Event type | Magnitude | Property damage | Crop damage | Deaths | Injuries | Geography |
|---|---|---|---|---|---|---|---|
| 24 Dec 2025 | Flood | — | $30K | — | — | — | County |
| 12 Oct 2025 | Flash Flood | — | — | — | — | — | County |
| 11 Oct 2025 | Flash Flood | — | — | — | — | — | County |
| 10 Oct 2025 | Flash Flood | — | $1K | — | — | — | County |
| 10 Oct 2025 | Flash Flood | — | $125K | — | — | — | County |
| 25 Sep 2025 | Flash Flood | — | — | — | — | — | County |
| 27 Aug 2025 | Flash Flood | — | — | — | — | — | County |
| 26 Aug 2025 | Flash Flood | — | — | — | — | — | County |
| 25 Aug 2025 | Flash Flood | — | — | — | — | — | County |
| 18 Jul 2025 | Flash Flood | — | — | — | — | — | County |
| 17 Jul 2025 | Flash Flood | — | — | — | — | — | County |
| 17 Jul 2025 | Flash Flood | — | — | — | — | — | County |
| 17 Jul 2025 | Flash Flood | — | — | — | — | — | County |
| 5 Jun 2025 | Flash Flood | — | $1K | — | — | — | County |
| 4 May 2025 | Flash Flood | — | — | — | — | — | County |
| 22 Aug 2024 | Flash Flood | — | $50K | — | — | — | County |
| 22 Aug 2024 | Flash Flood | — | — | — | — | — | County |
| 18 Aug 2024 | Flash Flood | — | $5K | — | — | — | County |
| 17 Aug 2024 | Flash Flood | — | — | — | — | 2 | County |
| 17 Aug 2024 | Flash Flood | — | $50K | — | — | — | County |
| 17 Aug 2024 | Flash Flood | — | — | — | — | — | County |
| 13 Aug 2024 | Flash Flood | — | — | — | — | — | County |
| 8 Aug 2024 | Flash Flood | — | — | — | — | — | County |
| 19 Nov 2023 | Flash Flood | — | — | — | — | — | County |
| 13 Sep 2023 | Flash Flood | — | $20K | — | — | — | County |
| 3 Sep 2023 | Flash Flood | — | — | — | — | — | County |
| 2 Sep 2023 | Flash Flood | — | $2K | — | — | — | County |
| 2 Sep 2023 | Flash Flood | — | — | — | — | — | County |
| 23 Aug 2023 | Flash Flood | — | $1K | — | — | — | County |
| 19 Aug 2023 | Flash Flood | — | — | — | — | — | County |
| 17 Aug 2023 | Flash Flood | — | — | — | — | — | County |
| 15 Aug 2023 | Flash Flood | — | — | — | — | — | County |
| 14 Aug 2023 | Flash Flood | — | — | — | — | — | County |
| 10 Aug 2023 | Flash Flood | — | — | — | — | — | County |
| 2 Aug 2023 | Flash Flood | — | — | — | — | — | County |
| 16 Mar 2023 | Flood | — | — | — | — | — | County |
| 15 Mar 2023 | Flash Flood | — | — | — | — | — | County |
| 15 Mar 2023 | Flood | — | — | — | — | — | County |
| 15 Mar 2023 | Flood | — | — | — | — | — | County |
| 15 Mar 2023 | Flash Flood | — | — | — | — | — | County |
| 15 Mar 2023 | Flood | — | — | — | — | — | County |
| 15 Mar 2023 | Flood | — | — | — | — | — | County |
| 15 Mar 2023 | Flash Flood | — | — | — | — | — | County |
| 15 Mar 2023 | Flood | — | — | — | — | — | County |
| 1 Jan 2023 | Flash Flood | — | — | — | — | — | County |
| 1 Jan 2023 | Flash Flood | — | — | — | — | — | County |
| 2 Oct 2022 | Flash Flood | — | — | — | — | — | County |
| 29 Sep 2022 | Flash Flood | — | — | — | — | — | County |
| 14 Sep 2022 | Flash Flood | — | — | — | — | — | County |
| 13 Sep 2022 | Flash Flood | — | — | — | — | — | County |
| 26 Aug 2022 | Flash Flood | — | — | — | — | — | County |
| 22 Aug 2022 | Flash Flood | — | — | — | — | — | County |
| 20 Aug 2022 | Flash Flood | — | — | — | — | — | County |
| 19 Aug 2022 | Flash Flood | — | — | — | — | — | County |
| 19 Aug 2022 | Flash Flood | — | — | — | — | — | County |
| 19 Aug 2022 | Flash Flood | — | — | — | 1 | 1 | County |
| 18 Aug 2022 | Flash Flood | — | — | — | — | — | County |
| 17 Aug 2022 | Flash Flood | — | — | — | — | — | County |
| 16 Aug 2022 | Flash Flood | — | — | — | — | — | County |
| 16 Aug 2022 | Flash Flood | — | — | — | — | — | County |
| 15 Aug 2022 | Flash Flood | — | — | — | — | — | County |
| 15 Aug 2022 | Flash Flood | — | $30K | — | — | — | County |
| 14 Aug 2022 | Flash Flood | — | — | — | — | — | County |
| 12 Aug 2022 | Flash Flood | — | — | — | — | — | County |
| 30 Jul 2022 | Flash Flood | — | $1K | — | — | — | County |
| 29 Jul 2022 | Flash Flood | — | — | — | — | — | County |
| 25 Jul 2022 | Flash Flood | — | — | — | — | — | County |
| 25 Jul 2022 | Flash Flood | — | $1K | — | — | — | County |
| 29 Jun 2022 | Flash Flood | — | — | — | — | — | County |
| 5 Oct 2021 | Flash Flood | — | — | — | — | — | County |
| 1 Sep 2021 | Flash Flood | — | — | — | — | — | County |
| 19 Aug 2021 | Flash Flood | — | $3K | — | — | — | County |
| 18 Aug 2021 | Flash Flood | — | — | — | — | — | County |
| 18 Aug 2021 | Flash Flood | — | — | — | — | — | County |
| 31 Jul 2021 | Flash Flood | — | — | — | — | — | County |
| 31 Jul 2021 | Flash Flood | — | — | — | — | — | County |
| 31 Jul 2021 | Flash Flood | — | — | — | — | — | County |
| 29 Jul 2021 | Flash Flood | — | — | — | — | — | County |
| 29 Jul 2021 | Flash Flood | — | — | — | — | — | County |
| 26 Jul 2021 | Flash Flood | — | — | — | — | — | County |
| 24 Jul 2021 | Flash Flood | — | $50K | — | — | — | County |
| 24 Jul 2021 | Flash Flood | — | — | — | — | — | County |
| 24 Jul 2021 | Flash Flood | — | — | — | — | — | County |
| 19 Jul 2021 | Flash Flood | — | — | — | — | — | County |
| 16 Jul 2021 | Flash Flood | — | — | — | — | — | County |
| 14 Jul 2021 | Flood | — | $100K | — | — | — | County |
| 29 Jun 2021 | Flash Flood | — | — | — | — | — | County |
| 29 Jun 2021 | Flash Flood | — | — | — | — | — | County |
| 23 Aug 2020 | Flash Flood | — | $5.4M | — | — | — | County |
| 13 Mar 2020 | Flash Flood | — | — | — | — | — | County |
| 20 Nov 2019 | Flash Flood | — | — | — | — | — | County |
| 20 Nov 2019 | Flash Flood | — | — | — | — | — | County |
| 9 May 2019 | Flash Flood | — | — | — | — | — | County |
| 3 Feb 2019 | Flood | — | — | — | — | — | County |
| 22 Aug 2018 | Flash Flood | — | $50K | — | — | — | County |
| 22 Aug 2018 | Flash Flood | — | — | — | — | — | County |
| 22 Aug 2018 | Flash Flood | — | — | — | — | — | County |
| 22 Aug 2018 | Flash Flood | — | — | — | — | — | County |
| 21 Aug 2018 | Flash Flood | — | — | — | — | — | County |
| 19 Jul 2018 | Flash Flood | — | — | — | — | — | County |
| 19 Jul 2018 | Flash Flood | — | — | — | — | — | County |
| 17 Jul 2018 | Flash Flood | — | — | — | — | — | County |
| 17 Jul 2018 | Flash Flood | — | — | — | — | — | County |
| 15 Jul 2018 | Flash Flood | — | — | — | — | — | County |
| 14 Jul 2018 | Flash Flood | — | — | — | — | — | County |
| 13 Jul 2018 | Flash Flood | — | $75K | — | — | — | County |
| 12 Jul 2018 | Flash Flood | — | $250K | — | — | — | County |
| 12 Jul 2018 | Flash Flood | — | — | — | — | — | County |
| 11 Jul 2018 | Flash Flood | — | — | — | — | — | County |
| 14 Sep 2017 | Flash Flood | — | — | — | — | — | County |
| 3 Aug 2017 | Flash Flood | — | — | — | — | — | County |
| 29 Jul 2017 | Flash Flood | — | — | — | — | — | County |
| 22 Sep 2016 | Flash Flood | — | — | — | — | — | County |
| 10 Aug 2016 | Flash Flood | — | — | — | — | — | County |
| 3 Aug 2016 | Flash Flood | — | — | — | — | — | County |
| 3 Aug 2016 | Flash Flood | — | — | — | — | — | County |
| 3 Aug 2016 | Flash Flood | — | $1.0M | — | — | — | County |
| 3 Aug 2016 | Flash Flood | — | — | — | — | — | County |
| 30 Jun 2016 | Flash Flood | — | — | — | — | — | County |
| 18 Oct 2015 | Flash Flood | — | — | — | — | — | County |
| 17 Oct 2015 | Flash Flood | — | $90K | — | — | — | County |
| 14 Sep 2015 | Flash Flood | — | $750K | — | 13 | 3 | County |
| 14 Sep 2015 | Flash Flood | — | — | — | 7 | — | County |
| 18 Jul 2015 | Flash Flood | — | $50K | — | — | — | County |
| 18 Jul 2015 | Flash Flood | — | $50K | — | — | — | County |
| 27 Sep 2014 | Flash Flood | — | $350K | — | 1 | — | County |
| 9 Sep 2014 | Flash Flood | — | $350K | — | — | — | County |
| 18 Aug 2014 | Flash Flood | — | $75K | — | — | — | County |
| 2 Aug 2014 | Flash Flood | — | $125K | — | — | — | County |
| 16 Jul 2014 | Flash Flood | — | $100K | — | — | — | County |
| 10 Sep 2013 | Flood | — | $40K | — | — | — | County |
| 4 Sep 2013 | Flash Flood | — | $10K | — | — | — | County |
| 30 Aug 2013 | Flash Flood | — | $30K | — | — | — | County |
| 28 Jul 2013 | Flash Flood | — | $20K | — | — | — | County |
| 27 Jul 2013 | Flash Flood | — | $5K | — | — | — | County |
| 26 Jul 2013 | Flash Flood | — | $100K | — | — | — | County |
| 26 Jul 2013 | Flash Flood | — | $75K | — | — | — | County |
| 20 Jul 2013 | Flash Flood | — | $20K | — | — | — | County |
| 12 Jul 2013 | Flash Flood | — | $10K | — | — | — | County |
| 11 Sep 2012 | Flash Flood | — | $7.5M | — | — | — | County |
| 1 Aug 2012 | Flash Flood | — | — | — | 1 | — | County |
| 15 Jul 2012 | Flash Flood | — | $500K | — | — | — | County |
| 19 Dec 2010 | Flood | — | $20M | — | — | — | County |
| 30 Jul 2010 | Flash Flood | — | $100K | — | — | — | County |
| 24 Jul 2010 | Flash Flood | — | — | — | — | 3 | County |
| 27 Aug 2007 | Flash Flood | — | $120K | — | — | — | County |
| 1 Aug 2007 | Flash Flood | — | $2.1M | — | — | — | County |
| 1 Aug 2007 | Flood | — | $225K | — | — | — | County |
| 1 Aug 2007 | Flash Flood | — | $125K | — | — | — | County |
| 24 Jul 2007 | Flash Flood | — | $5K | — | — | — | County |
| 12 Aug 2005 | Flash Flood | — | $12K | — | — | — | County |
| 2 Aug 2005 | Flash Flood | — | $35K | — | — | — | County |
| 2 Aug 2005 | Flash Flood | — | $1K | — | — | — | County |
| 12 Nov 2004 | Flash Flood | — | $65K | — | — | — | County |
| 21 Oct 2004 | Flash Flood | — | $20K | — | — | — | County |
| 20 Oct 2004 | Flash Flood | — | $80K | — | — | — | County |
| 20 Oct 2004 | Flash Flood | — | $50K | — | — | — | County |
| 20 Oct 2004 | Flash Flood | — | $25K | — | — | — | County |
| 20 Oct 2004 | Flash Flood | — | $15K | — | — | — | County |
| 20 Oct 2004 | Flash Flood | — | $10K | — | — | — | County |
| 20 Oct 2004 | Flash Flood | — | $2K | — | — | — | County |
| 15 Jul 2004 | Flash Flood | — | $10K | — | — | — | County |
| 22 Aug 2003 | Flash Flood | — | $5K | — | — | — | County |
| 6 Sep 2002 | Flash Flood | — | $10K | $10K | — | — | County |
| 13 May 2001 | Flash Flood | — | — | — | 1 | — | County |
| 29 Aug 2000 | Flash Flood | — | $50K | $2K | — | — | County |
| 30 Aug 1999 | Flash Flood | — | $2K | — | — | — | County |
| 11 Sep 1998 | Flash Flood | — | $200K | $20K | — | — | County |
| 10 Sep 1998 | Flash Flood | — | $20K | $2K | — | — | County |
| 27 Jul 1998 | Flash Flood | — | — | $200 | 2 | — | County |
| 21 Jul 1998 | Flash Flood | — | $10K | $1K | — | — | County |
| 15 Sep 1997 | Flood | — | $40K | — | — | — | County |
| 14 Sep 1997 | Flash Flood | — | $2K | — | — | — | County |
| 10 Aug 1997 | Flash Flood | — | $100K | — | — | — | County |
| 3 Jan 1997 | Flash Flood | — | $5.0M | — | — | 11 | County |
| 21 Nov 1996 | Flash Flood | — | $5.0M | — | — | 2 | County |
| 24 Aug 1996 | Flash Flood | — | — | — | — | — | County |
Questions and answers
How many flood events has Washington County had?
292 events in the NCEI Storm Events record between 1950 and 2026. Reporting of floods and flash floods became far more complete after 1996, so early decades undercount.
When was the last recorded flood event in Washington County?
24 Dec 2025 (Flood). Records reach NCEI about 120 days after the month ends.
What was the most damaging flood event recorded in Washington County?
The flood of 19 Dec 2010, with property damage estimated by NCEI at $20M.
How does Washington County compare with Utah for flood?
12.0 events per 100 square miles against 1.7 statewide; the county holds 292 of the state's 1,399 recorded events.
Provenance
NOAA NCEI Storm Events Database, yearly details files through 30 Jun 2026, public domain. County-recorded events plus zone-recorded events whose forecast zone is named for the county (marked "Forecast zone"). Population and area from the US Census Bureau (2021). Built 1 Oct 2026. See the methodology, the Flood hub and the county page.