Flood in Hamilton County, Ohio

Flood in Hamilton County, Ohio: 62 recorded events between 2007 and 2025. The strongest on record measured 0. That places the county #177 nationally and #7 statewide for this hazard.

Reporting practice changed over time — early decades are undercounted, not calmer.

The busiest decade for flood in Hamilton County is the 2010s, when 42 of the county's 62 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 Hamilton County archive, flood makes up 6.7% of all recorded severe weather across 7 hazard types. Nationally the county sits at #177 for this hazard and #7 within Ohio, putting it in the 94.1 percentile of all U.S. counties.

Jun is the peak month for flood in Hamilton County with 12 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.

• Thunderstorm Wind 451
• Hail 210
• Flash Flood 146

How many flood events are on record in Hamilton County, Ohio?

62 flood events are recorded in Hamilton County between 2007 and 2025, causing 0 direct deaths.

What is the strongest flood recorded in Hamilton County?

The strongest flood on record in Hamilton County measured 0.

Where does the flood data for Hamilton 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.