States › New York › Genesee County › Flood
Flood in Genesee County, New York
38 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 38 flood events in Genesee County, New York, between 1950 and 2026, spread over 16 years.
July is the busiest month, with 13 of the recorded events. The last 20 years account for 17 events against 21 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 0.6% of the 6,836 flood events recorded in New York; its 7.7 per 100 square miles compares with 14.5 statewide.
Compared with New York
| Measure | Genesee County | New York | US |
|---|---|---|---|
| Flood events since 1950 | 38 | 6,836 | 183,559 |
| Per 100 square miles | 7.7 | 14.5 | 5.2 |
| Per 10,000 residents | 6.6 | 3.4 | 5.5 |
| Deaths recorded | 0 | 117 | 2,961 |
| Busiest month | July | July | June |
By year
Seasonality
9Feb
2Mar
2Apr
3May
0Jun
4Jul
13Aug
0Sep
1Oct
0Nov
2Dec
2
Recorded events
All 38 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 Jul 2024 | Flash Flood | — | — | — | — | — | County |
| 15 Jul 2024 | Flash Flood | — | — | — | — | — | County |
| 29 Jul 2023 | Flash Flood | — | — | — | — | — | County |
| 6 Nov 2017 | Flood | — | $10K | — | — | — | County |
| 23 Jul 2017 | Flash Flood | — | $15K | — | — | — | County |
| 13 Jul 2017 | Flood | — | $15K | — | — | — | County |
| 20 Apr 2017 | Flood | — | $30K | — | — | — | County |
| 24 Nov 2014 | Flood | — | $100K | — | — | — | County |
| 12 Jun 2014 | Flash Flood | — | $20K | — | — | — | County |
| 22 Dec 2013 | Flood | — | $20K | — | — | — | County |
| 31 Jul 2012 | Flash Flood | — | $50K | — | — | — | County |
| 31 Jul 2012 | Flash Flood | — | $100K | — | — | — | County |
| 31 Jul 2012 | Flash Flood | — | $25K | — | — | — | County |
| 8 Mar 2009 | Flood | — | $10K | — | — | — | County |
| 12 Feb 2009 | Flood | — | $15K | — | — | — | County |
| 27 Dec 2008 | Flood | — | $50K | — | — | — | County |
| 15 Mar 2007 | Flood | — | $125K | — | — | — | County |
| 3 Apr 2005 | Flood | — | $50K | — | — | — | Forecast zone |
| 9 Sep 2004 | Flood | — | $150K | — | — | — | Forecast zone |
| 2 Feb 2002 | Flood | — | $15K | — | — | — | Forecast zone |
| 16 Jul 2000 | Flash Flood | — | $10K | $20K | — | — | County |
| 24 Jan 1999 | Flash Flood | — | $25K | — | — | — | County |
| 24 Jan 1999 | Flood | — | $100K | — | — | — | Forecast zone |
| 23 Jan 1999 | Flash Flood | — | $80K | — | — | — | County |
| 23 Jan 1999 | Flash Flood | — | $15K | — | — | — | County |
| 9 Jul 1998 | Flood | — | $75K | — | — | — | Forecast zone |
| 8 Jul 1998 | Flash Flood | — | $75K | — | — | — | County |
| 8 Jul 1998 | Flood | — | $100K | — | — | — | Forecast zone |
| 8 Jul 1998 | Flood | — | $150K | — | — | — | Forecast zone |
| 26 Jun 1998 | Flash Flood | — | $500K | — | — | — | County |
| 26 Jun 1998 | Flash Flood | — | $500K | — | — | — | County |
| 8 Jan 1998 | Flash Flood | — | $1K | — | — | — | County |
| 8 Jan 1998 | Flood | — | $15K | — | — | — | Forecast zone |
| 8 Jan 1998 | Flash Flood | — | $1K | — | — | — | County |
| 8 Jan 1998 | Flash Flood | — | $10K | — | — | — | County |
| 20 Jun 1996 | Flash Flood | — | $40K | — | — | — | County |
| 13 Apr 1996 | Flood | — | $7K | — | — | — | Forecast zone |
| 19 Jan 1996 | Flood | — | $20K | — | — | — | Forecast zone |
Questions and answers
How many flood events has Genesee County had?
38 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 Genesee County?
15 Jul 2024 (Flash Flood). Records reach NCEI about 120 days after the month ends.
What was the most damaging flood event recorded in Genesee County?
The flash flood of 26 Jun 1998, with property damage estimated by NCEI at $500K.
How does Genesee County compare with New York for flood?
7.7 events per 100 square miles against 14.5 statewide; the county holds 38 of the state's 6,836 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.