61
Recorded events
1
Direct deaths
0
Direct injuries
$3.5M
Property damage
Flash Flood in Butler County, Ohio: 61 recorded events between 1996 and 2026. The strongest on record measured 0. That places the county #440 nationally and #11 statewide for this hazard.
Decade by decade
Flash Flood in Butler County, Ohio: events per decade
Reporting practice changed over time — early decades are undercounted, not calmer.
The busiest decade for flash flood in Butler County is the 2010s, when 24 of the county's 61 recorded events were logged. Comparing decades is useful for spotting active periods, but the earliest years are thin because systematic reporting for this hazard began later.
Within the Butler County archive, flash flood makes up 10.2% of all recorded severe weather across 7 hazard types. Nationally the county sits at #440 for this hazard and #11 within Ohio, putting it in the 85.3 percentile of all U.S. counties.
Seasonality
Events by month
Jun is the peak month for flash flood in Butler County with 16 recorded events, while Oct is the quietest. Seasonality here is a property of the archive as much as the climate: reports cluster where population and spotter networks are densest.
Significant events
Deadliest on record
| Date | Location | Scale | Deaths | Injuries | Damage |
|---|---|---|---|---|---|
| Apr 29, 1996 | COUNTYWIDE | 0 | 1 | 0 | $3K |
Most recent
Latest recorded events
| Date | Location | Magnitude | Damage |
|---|---|---|---|
| Mar 5, 2026 | SEVEN MILE | — | $0 |
| Mar 5, 2026 | MILLVILLE | — | $20K |
| Mar 4, 2026 | MILLVILLE | — | $0 |
| Mar 4, 2026 | COLLINSVILLE | — | $9K |
| Mar 4, 2026 | MILLVILLE | — | $50K |
| Feb 19, 2026 | SEVEN MILE | — | $0 |
| Jun 15, 2025 | AUBURN | 0 | $0 |
| May 20, 2022 | HAMILTON | 0 | $50K |
| May 20, 2022 | PORT UNION | 0 | $10K |
| May 19, 2020 | RIALTO | 0 | $100K |
Other hazards here
More from Butler County
- Thunderstorm Wind 309
- Hail 159
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
Several state, county and township roads incurred culvert and/or beam damage. 159 dwellings and one nursing home with damage across county. A stream was out of its banks at the intersection of State Routes 73 and 177. Total estimate of public assistance is 1,465,350.
Twenty five homes in the Cedar Grove subdivision in New Miami were evacuated when Four Mile and Seven Mile Creeks came out of their banks. In Fairfield, up to 50 homes were evacuated when Pleasant Run Creek rose out of its banks. Cars were trapped in high water throughout Fairfield, with a total of 300 homes sustaining damage from the flooding.
Quick answers
Frequently asked
How many flash flood events are on record in Butler County, Ohio?
61 flash flood events are recorded in Butler County between 1996 and 2026, causing 1 direct deaths.
What is the strongest flash flood recorded in Butler County?
The strongest flash flood on record in Butler County measured 0.
Where does the flash flood data for Butler County come from?
All events come from the NOAA/NCEI Storm Events Database, the federal public-domain archive of severe weather reports. Dates are UTC, damage is as reported and not inflation-adjusted, and the most recent entries may still be revised.
Cite this page
“Flash Flood in Butler County, Ohio.” Severe Weather History. severeweatherhistory.com/county/ohio/butler-county/flash-flood/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.