States › Florida › Hamilton County › Flood
Flood in Hamilton County, Florida
13 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.
Hamilton County, Florida, has 13 flood events in the NCEI record since 1950, with at least one in 8 different years.
June is the busiest month, with 6 of the recorded events. The last 20 years account for 8 events against 5 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 0.4% of the 3,375 flood events recorded in Florida; its 2.5 per 100 square miles compares with 6.3 statewide.
Compared with Florida
| Measure | Hamilton County | Florida | US |
|---|---|---|---|
| Flood events since 1950 | 13 | 3,375 | 183,559 |
| Per 100 square miles | 2.5 | 6.3 | 5.2 |
| Per 10,000 residents | 9.3 | 1.5 | 5.5 |
| Deaths recorded | 0 | 22 | 2,961 |
| Busiest month | June | September | June |
By year
Seasonality
0Feb
2Mar
2Apr
2May
0Jun
6Jul
0Aug
0Sep
0Oct
0Nov
0Dec
1
Recorded events
All 13 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 |
|---|---|---|---|---|---|---|---|
| 15 Jun 2023 | Flood | — | — | — | — | — | County |
| 15 Jun 2023 | Flood | — | — | — | — | — | County |
| 7 Jun 2020 | Flash Flood | — | $35K | — | — | — | County |
| 5 Dec 2018 | Flood | — | — | — | — | — | County |
| 26 Jun 2012 | Flash Flood | — | $200K | — | — | — | County |
| 25 Jun 2012 | Flood | — | $100K | — | — | — | County |
| 5 Apr 2009 | Flood | — | — | — | — | — | County |
| 2 Apr 2009 | Flood | — | — | — | — | — | County |
| 12 Jun 2001 | Flash Flood | — | — | — | — | — | County |
| 30 Mar 2000 | Flash Flood | — | $3K | — | — | — | County |
| 1 Mar 1998 | Flood | — | $590K | — | — | — | Forecast zone |
| 17 Feb 1998 | Flash Flood | — | — | — | — | — | County |
| 17 Feb 1998 | Flash Flood | — | $30K | — | — | — | County |
Questions and answers
How many flood events has Hamilton County had?
13 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 Hamilton County?
15 Jun 2023 (Flood). Records reach NCEI about 120 days after the month ends.
What was the most damaging flood event recorded in Hamilton County?
The flood of 1 Mar 1998, with property damage estimated by NCEI at $590K.
How does Hamilton County compare with Florida for flood?
2.5 events per 100 square miles against 6.3 statewide; the county holds 13 of the state's 3,375 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.