States › Ohio › Miami County › Flood
Flood in Miami County, Ohio
67 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.
Miami County, Ohio, has 67 flood events in the NCEI record since 1950, with at least one in 24 different years.
July is the busiest month, with 16 of the recorded events. The last 20 years account for 40 events against 27 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 1% of the 6,794 flood events recorded in Ohio; its 16.5 per 100 square miles compares with 16.6 statewide.
Compared with Ohio
| Measure | Miami County | Ohio | US |
|---|---|---|---|
| Flood events since 1950 | 67 | 6,794 | 183,559 |
| Per 100 square miles | 16.5 | 16.6 | 5.2 |
| Per 10,000 residents | 6.1 | 5.8 | 5.5 |
| Deaths recorded | 0 | 74 | 2,961 |
| Busiest month | July | June | June |
By year
Seasonality
6Feb
4Mar
1Apr
2May
8Jun
13Jul
16Aug
1Sep
5Oct
0Nov
3Dec
8
Recorded events
All 67 events, most recent first. Magnitude is hail size, tornado rating or wind speed as recorded.
| Date | Event type | Magnitude | Property damage | Crop damage | Deaths | Injuries | Geography |
|---|---|---|---|---|---|---|---|
| 23 May 2026 | Flood | — | — | — | — | — | County |
| 1 Jul 2025 | Flash Flood | — | — | — | — | — | County |
| 28 Jun 2025 | Flood | — | — | — | — | — | County |
| 28 Jun 2025 | Flood | — | — | — | — | — | County |
| 7 Feb 2019 | Flood | — | — | — | — | — | County |
| 7 Feb 2019 | Flood | — | — | — | — | — | County |
| 8 Sep 2018 | Flood | — | — | — | — | — | County |
| 18 Nov 2017 | Flood | — | — | — | — | — | County |
| 5 Nov 2017 | Flood | — | — | — | — | — | County |
| 23 Jun 2017 | Flash Flood | — | — | — | — | — | County |
| 18 Jul 2015 | Flood | — | — | — | — | — | County |
| 14 Jul 2015 | Flood | — | — | — | — | — | County |
| 14 Jul 2015 | Flood | — | — | — | — | — | County |
| 21 May 2014 | Flood | — | — | — | — | — | County |
| 21 May 2014 | Flash Flood | — | $1K | — | — | — | County |
| 21 May 2014 | Flash Flood | — | $1K | — | — | — | County |
| 21 May 2014 | Flash Flood | — | $1K | — | — | — | County |
| 21 May 2014 | Flash Flood | — | $1.3M | — | — | — | County |
| 21 May 2014 | Flash Flood | — | $1K | — | — | — | County |
| 22 Dec 2013 | Flood | — | $20K | — | — | — | County |
| 22 Dec 2013 | Flood | — | $50K | — | — | — | County |
| 22 Dec 2013 | Flood | — | — | — | — | — | County |
| 22 Dec 2013 | Flood | — | — | — | — | — | County |
| 22 Dec 2013 | Flood | — | — | — | — | — | County |
| 22 Dec 2013 | Flash Flood | — | $1K | — | — | — | County |
| 8 Jul 2013 | Flash Flood | — | $1K | — | — | — | County |
| 8 Jul 2013 | Flood | — | — | — | — | — | County |
| 8 Jul 2013 | Flash Flood | — | $1K | — | — | — | County |
| 8 Jul 2013 | Flash Flood | — | $1K | — | — | — | County |
| 17 Jun 2012 | Flood | — | $1K | — | — | — | County |
| 26 Jan 2012 | Flood | — | $1K | — | — | — | County |
| 28 Feb 2011 | Flood | — | $5K | — | — | — | County |
| 28 Feb 2011 | Flood | — | $5K | — | — | — | County |
| 15 Jun 2010 | Flood | — | $1K | — | — | — | County |
| 14 Jun 2010 | Flash Flood | — | $3K | — | — | — | County |
| 11 Jul 2009 | Flash Flood | — | $2K | — | — | — | County |
| 13 Jul 2008 | Flood | — | $1K | — | — | — | County |
| 12 Jul 2008 | Flash Flood | — | $3K | — | — | — | County |
| 4 Jun 2008 | Flash Flood | — | $2K | — | — | — | County |
| 2 Mar 2007 | Flood | — | $3K | — | — | — | County |
| 1 Dec 2006 | Flood | — | $3K | — | — | — | County |
| 29 Jul 2006 | Flash Flood | — | — | — | — | — | County |
| 18 Jul 2006 | Flood | — | — | — | — | — | County |
| 1 Jun 2006 | Flash Flood | — | — | — | — | — | County |
| 16 Sep 2005 | Flood | — | — | — | — | — | Forecast zone |
| 30 Jun 2005 | Flood | — | — | — | — | — | Forecast zone |
| 30 Jun 2005 | Flood | — | — | — | — | — | Forecast zone |
| 11 Jan 2005 | Flood | — | $10K | — | — | — | Forecast zone |
| 5 Jan 2005 | Flood | — | $20K | — | — | — | Forecast zone |
| 10 Jul 2004 | Flood | — | — | — | — | — | Forecast zone |
| 15 Jun 2004 | Flood | — | — | — | — | — | Forecast zone |
| 4 Jan 2004 | Flood | — | — | — | — | — | Forecast zone |
| 4 Jan 2004 | Flood | — | — | — | — | — | Forecast zone |
| 1 Sep 2003 | Flood | — | — | — | — | — | Forecast zone |
| 1 Sep 2003 | Flood | — | $5K | — | — | — | Forecast zone |
| 7 Jul 2003 | Flood | — | $30K | — | — | — | Forecast zone |
| 6 Jul 2003 | Flood | — | — | — | — | — | Forecast zone |
| 9 May 2003 | Flood | — | — | — | — | — | Forecast zone |
| 10 Nov 2002 | Flood | — | — | — | — | — | Forecast zone |
| 27 Sep 2002 | Flash Flood | — | — | — | — | — | County |
| 11 Aug 2002 | Flood | — | — | — | — | — | Forecast zone |
| 17 Dec 2001 | Flood | — | — | — | — | — | Forecast zone |
| 7 Apr 2000 | Flash Flood | — | $5K | — | — | — | County |
| 22 Jan 1999 | Flash Flood | — | — | — | — | — | County |
| 29 Jun 1998 | Flash Flood | — | — | — | — | — | County |
| 11 Jun 1998 | Flash Flood | — | $5K | — | — | — | County |
| 29 Apr 1996 | Flash Flood | — | $4K | — | — | — | County |
Questions and answers
How many flood events has Miami County had?
67 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 Miami County?
23 May 2026 (Flood). Records reach NCEI about 120 days after the month ends.
What was the most damaging flood event recorded in Miami County?
The flash flood of 21 May 2014, with property damage estimated by NCEI at $1.3M.
How does Miami County compare with Ohio for flood?
16.5 events per 100 square miles against 16.6 statewide; the county holds 67 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.