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Flood in Washington County, Ohio
216 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 216 flood events in Washington County, Ohio, between 1950 and 2026, spread over 24 years.
February is the busiest month, with 40 of the recorded events. The last 20 years account for 190 events against 26 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 3.2% of the 6,794 flood events recorded in Ohio; its 34.2 per 100 square miles compares with 16.6 statewide.
NCEI attributes 2 deaths in the county to floods and flash floods.
Compared with Ohio
| Measure | Washington County | Ohio | US |
|---|---|---|---|
| Flood events since 1950 | 216 | 6,794 | 183,559 |
| Per 100 square miles | 34.2 | 16.6 | 5.2 |
| Per 10,000 residents | 36.3 | 5.8 | 5.5 |
| Deaths recorded | 2 | 74 | 2,961 |
| Busiest month | February | June | June |
By year
Seasonality
32Feb
40Mar
27Apr
34May
22Jun
20Jul
7Aug
5Sep
10Oct
0Nov
7Dec
12
Recorded events
The 185 events kept for this page are the 120 most recent plus the 80 with the most damage, deaths or injuries out of 216. Magnitude is hail size, tornado rating or wind speed as recorded.
| Date | Event type | Magnitude | Property damage | Crop damage | Deaths | Injuries | Geography |
|---|---|---|---|---|---|---|---|
| 27 May 2026 | Flood | — | — | — | — | — | County |
| 27 May 2026 | Flood | — | — | — | — | — | County |
| 27 May 2026 | Flood | — | — | — | — | — | County |
| 25 May 2026 | Flood | — | — | — | — | — | County |
| 23 May 2026 | Flood | — | — | — | — | — | County |
| 1 Apr 2026 | Flash Flood | — | — | — | — | — | County |
| 27 Mar 2026 | Flood | — | — | — | — | — | County |
| 27 Mar 2026 | Flood | — | — | — | — | — | County |
| 11 Mar 2026 | Flood | — | — | — | — | — | County |
| 5 Mar 2026 | Flood | — | — | — | — | — | County |
| 5 Mar 2026 | Flood | — | — | — | — | — | County |
| 5 Mar 2026 | Flood | — | — | — | — | — | County |
| 15 Jun 2025 | Flash Flood | — | — | — | — | — | County |
| 7 Jun 2025 | Flood | — | — | — | — | — | County |
| 30 May 2025 | Flood | — | — | — | — | — | County |
| 6 Apr 2025 | Flood | — | — | — | — | — | County |
| 4 Apr 2025 | Flood | — | — | — | — | — | County |
| 4 Apr 2025 | Flood | — | — | — | — | — | County |
| 4 Apr 2025 | Flood | — | — | — | — | — | County |
| 4 Apr 2025 | Flood | — | — | — | — | — | County |
| 3 Apr 2025 | Flood | — | — | — | — | — | County |
| 16 Feb 2025 | Flood | — | — | — | — | — | County |
| 16 Feb 2025 | Flood | — | — | — | — | — | County |
| 16 Feb 2025 | Flood | — | — | — | — | — | County |
| 13 Apr 2024 | Flood | — | — | — | — | — | County |
| 13 Apr 2024 | Flood | — | — | — | — | — | County |
| 12 Apr 2024 | Flood | — | — | — | — | — | County |
| 11 Apr 2024 | Flood | — | — | — | — | — | County |
| 3 Apr 2024 | Flood | — | — | — | — | — | County |
| 3 Apr 2024 | Flood | — | — | — | — | — | County |
| 3 Apr 2024 | Flood | — | — | — | — | — | County |
| 3 Apr 2024 | Flood | — | — | — | 1 | — | County |
| 2 Apr 2024 | Flood | — | $10K | — | — | — | County |
| 2 Apr 2024 | Flood | — | — | — | — | — | County |
| 2 Apr 2024 | Flood | — | — | — | — | — | County |
| 15 Mar 2024 | Flood | — | $500 | — | — | — | County |
| 15 Mar 2024 | Flood | — | $200 | — | — | — | County |
| 15 Mar 2024 | Flood | — | $250 | — | — | — | County |
| 28 Jan 2024 | Flood | — | — | — | — | — | County |
| 28 Jan 2024 | Flood | — | — | — | — | — | County |
| 28 Jan 2024 | Flood | — | — | — | — | — | County |
| 28 Jan 2024 | Flood | — | — | — | — | — | County |
| 28 Jan 2024 | Flood | — | — | — | — | — | County |
| 25 Jan 2024 | Flood | — | — | — | — | — | County |
| 25 Jan 2024 | Flood | — | — | — | — | — | County |
| 25 Jan 2024 | Flood | — | — | — | — | — | County |
| 25 Jan 2024 | Flood | — | — | — | — | — | County |
| 25 Jan 2024 | Flood | — | — | — | — | — | County |
| 9 Jan 2024 | Flood | — | — | — | — | — | County |
| 9 Jan 2024 | Flood | — | — | — | — | — | County |
| 9 Jan 2024 | Flood | — | — | — | — | — | County |
| 27 Dec 2023 | Flood | — | $500 | — | — | — | County |
| 7 Aug 2023 | Flash Flood | — | $4K | — | — | — | County |
| 29 Apr 2023 | Flood | — | — | — | — | — | County |
| 28 Apr 2023 | Flood | — | — | — | — | — | County |
| 24 Mar 2023 | Flood | — | $200 | — | — | — | County |
| 4 Jan 2023 | Flood | — | $2K | — | — | — | County |
| 3 Jan 2023 | Flood | — | $2K | — | — | — | County |
| 3 Jan 2023 | Flood | — | $2K | — | — | — | County |
| 3 Jan 2023 | Flood | — | $2K | — | — | — | County |
| 3 Jan 2023 | Flood | — | $2K | — | — | — | County |
| 12 Nov 2022 | Flood | — | $200 | — | — | — | County |
| 18 Jul 2022 | Flood | — | $500 | — | — | — | County |
| 17 Jun 2022 | Flood | — | $500 | — | — | — | County |
| 17 Jun 2022 | Flash Flood | — | $500 | — | — | — | County |
| 17 Jun 2022 | Flood | — | $500 | — | — | — | County |
| 16 Jun 2022 | Flash Flood | — | $500 | — | — | — | County |
| 7 May 2022 | Flood | — | $500 | — | — | — | County |
| 7 May 2022 | Flood | — | $500 | — | — | — | County |
| 7 May 2022 | Flood | — | $500 | — | — | — | County |
| 6 May 2022 | Flood | — | — | — | — | — | County |
| 25 Feb 2022 | Flood | — | $500 | — | — | — | County |
| 25 Feb 2022 | Flood | — | $500 | — | — | — | County |
| 25 Feb 2022 | Flood | — | $500 | — | — | — | County |
| 23 Feb 2022 | Flood | — | $500 | — | — | — | County |
| 22 Feb 2022 | Flood | — | $500 | — | — | — | County |
| 18 Feb 2022 | Flood | — | $1K | — | — | — | County |
| 18 Feb 2022 | Flood | — | $8K | — | — | — | County |
| 18 Feb 2022 | Flood | — | $2K | — | — | — | County |
| 18 Feb 2022 | Flood | — | $500 | — | — | — | County |
| 18 Feb 2022 | Flood | — | $500 | — | — | — | County |
| 3 Feb 2022 | Flood | — | $2K | — | — | — | County |
| 3 Feb 2022 | Flood | — | $1K | — | — | — | County |
| 3 Feb 2022 | Flood | — | $500 | — | — | — | County |
| 3 Feb 2022 | Flood | — | $3K | — | — | — | County |
| 3 Feb 2022 | Flood | — | $1K | — | — | — | County |
| 1 Mar 2021 | Flood | — | $5K | — | — | — | County |
| 22 May 2020 | Flood | — | $2K | — | — | — | County |
| 20 May 2020 | Flood | — | $10K | — | — | — | County |
| 20 May 2020 | Flood | — | $4K | — | — | — | County |
| 20 May 2020 | Flood | — | $3K | — | — | — | County |
| 13 Apr 2020 | Flood | — | $2K | — | — | — | County |
| 8 Apr 2020 | Flood | — | $2K | — | — | — | County |
| 8 Apr 2020 | Flood | — | $2K | — | — | — | County |
| 20 Mar 2020 | Flood | — | $5K | — | — | — | County |
| 19 Mar 2020 | Flood | — | $2K | — | — | — | County |
| 19 Mar 2020 | Flood | — | $2K | — | — | — | County |
| 19 Mar 2020 | Flood | — | $5K | — | — | — | County |
| 13 Feb 2020 | Flood | — | $2K | — | — | — | County |
| 13 Feb 2020 | Flood | — | $2K | — | — | — | County |
| 13 Feb 2020 | Flood | — | $2K | — | — | — | County |
| 13 Feb 2020 | Flood | — | $3K | — | — | — | County |
| 25 Jan 2020 | Flood | — | $2K | — | — | — | County |
| 24 Jan 2020 | Flood | — | $2K | — | — | — | County |
| 30 Dec 2019 | Flood | — | $2K | — | — | — | County |
| 17 Dec 2019 | Flood | — | $2K | — | — | — | County |
| 7 Jul 2019 | Flood | — | $2K | — | — | — | County |
| 20 Jun 2019 | Flood | — | $500 | — | — | — | County |
| 31 May 2019 | Flash Flood | — | $2K | — | — | — | County |
| 25 May 2019 | Flash Flood | — | $2K | — | — | — | County |
| 26 Apr 2019 | Flood | — | $2K | — | — | — | County |
| 21 Feb 2019 | Flood | — | $2K | — | — | — | County |
| 21 Feb 2019 | Flood | — | $2K | — | — | — | County |
| 12 Feb 2019 | Flood | — | $2K | — | — | — | County |
| 12 Feb 2019 | Flood | — | $2K | — | — | — | County |
| 12 Feb 2019 | Flood | — | $2K | — | — | — | County |
| 7 Feb 2019 | Flood | — | — | — | — | — | County |
| 6 Feb 2019 | Flood | — | $2K | — | — | — | County |
| 6 Feb 2019 | Flood | — | $8K | — | — | — | County |
| 24 Jan 2019 | Flood | — | $2K | — | — | — | County |
| 24 Jan 2019 | Flood | — | $2K | — | — | — | County |
| 24 Jan 2019 | Flood | — | $2K | — | — | — | County |
| 20 Jan 2019 | Flood | — | $2K | — | — | — | County |
| 21 Dec 2018 | Flood | — | $3K | — | — | — | County |
| 21 Dec 2018 | Flood | — | $3K | — | — | — | County |
| 21 Dec 2018 | Flood | — | $2K | — | — | — | County |
| 21 Dec 2018 | Flood | — | $2K | — | — | — | County |
| 16 Dec 2018 | Flood | — | $2K | — | — | — | County |
| 15 Nov 2018 | Flood | — | $2K | — | — | — | County |
| 24 Apr 2018 | Flood | — | $2K | — | — | — | County |
| 16 Apr 2018 | Flood | — | $2K | — | — | — | County |
| 16 Apr 2018 | Flood | — | $2K | — | — | — | County |
| 4 Apr 2018 | Flood | — | $2K | — | — | — | County |
| 3 Apr 2018 | Flood | — | $4K | — | — | — | County |
| 3 Apr 2018 | Flood | — | $2K | — | — | — | County |
| 16 Feb 2018 | Flood | — | $10K | — | — | — | County |
| 16 Feb 2018 | Flood | — | $2K | — | — | — | County |
| 11 Feb 2018 | Flood | — | $3K | — | — | — | County |
| 12 Jan 2018 | Flood | — | $5K | — | — | — | County |
| 6 Nov 2017 | Flash Flood | — | $2K | — | — | — | County |
| 23 Jun 2017 | Flash Flood | — | $2K | — | — | — | County |
| 1 Mar 2017 | Flood | — | $10K | — | — | — | County |
| 1 Mar 2017 | Flood | — | $3K | — | — | — | County |
| 29 Sep 2015 | Flood | — | $5K | — | — | — | County |
| 9 Apr 2015 | Flood | — | $100K | — | — | — | County |
| 11 Mar 2015 | Flood | — | $5K | — | — | — | County |
| 4 Mar 2015 | Flood | — | $50K | — | — | — | County |
| 22 Dec 2013 | Flood | — | $5K | — | — | — | County |
| 23 Aug 2013 | Flash Flood | — | $25K | — | — | — | County |
| 13 Aug 2013 | Flash Flood | — | $450K | — | — | — | County |
| 10 Jul 2013 | Flood | — | $10K | — | — | — | County |
| 9 Jul 2013 | Flood | — | $40K | — | — | — | County |
| 8 May 2012 | Flash Flood | — | $5K | — | — | — | County |
| 29 Feb 2012 | Flash Flood | — | $5K | — | — | — | County |
| 27 Jan 2012 | Flood | — | $10K | — | — | — | County |
| 25 Aug 2011 | Flash Flood | — | $5K | — | — | — | County |
| 11 Mar 2011 | Flood | — | $25K | — | — | — | County |
| 10 Mar 2011 | Flood | — | $2K | — | — | — | County |
| 13 Jul 2010 | Flash Flood | — | $150K | — | — | — | County |
| 2 May 2010 | Flood | — | $15K | — | — | — | County |
| 19 Mar 2008 | Flood | — | $5K | — | — | — | County |
| 5 Jan 2005 | Flood | — | $750K | — | — | — | Forecast zone |
| 17 Sep 2004 | Flood | — | $17M | — | — | — | Forecast zone |
| 8 Sep 2004 | Flood | — | $500K | — | — | — | Forecast zone |
| 21 May 2004 | Flash Flood | — | $10K | — | — | — | County |
| 4 Jan 2004 | Flood | — | $500K | — | — | — | Forecast zone |
| 19 Nov 2003 | Flood | — | $5K | — | — | — | Forecast zone |
| 12 Nov 2003 | Flood | — | $5K | — | — | — | Forecast zone |
| 9 Aug 2003 | Flash Flood | — | $20K | — | — | — | County |
| 19 Jun 2003 | Flash Flood | — | $150K | — | — | — | County |
| 14 Jun 2003 | Flash Flood | — | $50K | — | — | — | County |
| 18 Feb 2000 | Flash Flood | — | $200K | — | — | — | County |
| 13 Feb 2000 | Flash Flood | — | $15K | — | — | — | County |
| 28 Jun 1998 | Flood | — | $25K | — | — | — | Forecast zone |
| 27 Jun 1998 | Flash Flood | — | $10M | — | 1 | — | County |
| 27 Jun 1998 | Flash Flood | — | $25K | — | — | — | County |
| 26 Jun 1998 | Flash Flood | — | $5K | — | — | — | County |
| 9 Jan 1998 | Flash Flood | — | $5K | — | — | — | County |
| 2 Jun 1997 | Flash Flood | — | $10K | — | — | — | County |
| 1 Jun 1997 | Flash Flood | — | $10K | — | — | — | County |
| 2 Mar 1997 | Flood | — | $200K | — | — | — | Forecast zone |
| 1 Mar 1997 | Flash Flood | — | $500K | — | — | — | County |
| 29 Jul 1996 | Flash Flood | — | $8K | — | — | — | County |
| 19 Jul 1996 | Flash Flood | — | $5K | — | — | — | County |
| 20 Jan 1996 | Flood | — | $500K | — | — | — | Forecast zone |
Questions and answers
How many flood events has Washington County had?
216 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?
27 May 2026 (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 17 Sep 2004, with property damage estimated by NCEI at $17M.
How does Washington County compare with Ohio for flood?
34.2 events per 100 square miles against 16.6 statewide; the county holds 216 of the state's 6,794 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.