Genesee County, New York: hazard risk
FEMA rates Genesee County's overall risk Relatively Low (score 56.1 of 100, higher than 56% of rated U.S. counties); 1 of its 14 hazards are rated Relatively High or Very High, led by lightning. Its storm record holds 450 events since 1950.
FEMA's rating for each hazard
These are FEMA's county-wide model ratings and this county's storm record. They are not an assessment of any property, address or building, and not insurance advice: a property's risk depends on its own elevation, construction and location.
FEMA gives each hazard its own rating, and a rating does not follow the score from one hazard to the next: a hazard with a higher score can carry a lower rating than another. The table sorts by FEMA's rating, then by score (0 to 100, the county against every other county for that hazard).
| Hazard | Risk rating | Score | Expected annual loss |
|---|---|---|---|
| Lightning | Relatively High | 85.8 | $985K |
| Ice Storm | Relatively Moderate | 74.6 | $287K |
| Drought | Relatively Moderate | 74.0 | $664K |
| Strong Wind | Relatively Moderate | 63.8 | $826K |
| Riverine Flooding | Relatively Low | 71.1 | $14M |
| Hail | Relatively Low | 62.1 | $417K |
| Hurricane | Relatively Low | 62.0 | $258K |
| Cold Wave | Relatively Low | 37.5 | $604K |
| Tornado | Relatively Low | 29.5 | $507K |
| Winter Weather | Relatively Low | 27.8 | $27K |
| Earthquake | Very Low | 47.4 | $246K |
| Heat Wave | Very Low | 34.3 | $173K |
| Landslide | Very Low | 22.5 | $153 |
| Wildfire | Very Low | 18.4 | $7K |
Source: FEMA National Risk Index, December 2025 release. A model of future loss, not a count of past events. FEMA's National Risk Index map.
What the record holds
| Hazard | Records | Deaths | Damage | Rank in state | Rank in U.S. |
|---|---|---|---|---|---|
| Severe thunderstorm wind | 159 | 0 | $2.1M | 39th of 58 | 1401st of 3,080 |
| Winter storms | 108 | 2 | $15M | 29th of 58 | 626th of 3,077 |
| High wind and dust storms | 72 | 1 | $6.6M | 14th of 58 | 208th of 3,080 |
| Floods | 38 | 0 | $4.3M | 42nd of 58 | 1405th of 3,080 |
| Hail | 28 | 0 | $14M | 44th of 58 | 2500th of 3,080 |
| Extreme cold | 27 | 0 | – | 15th of 58 | 474th of 3,076 |
| Tornadoes | 6 | 2 | $3.8M | 27th of 58 | 2332nd of 3,080 |
| Drought | 5 | 0 | – | 15th of 58 | 1999th of 3,063 |
| Lightning | 4 | 2 | $148K | 28th of 58 | 853rd of 3,080 |
| Heavy rain | 3 | 0 | – | 28th of 58 | 1470th of 3,080 |
Source: NOAA NCEI Storm Events Database, 1950 to 2026-06-30; damage in 2025 dollars. Search the record at NCEI.
The full Genesee County record: every hazard by year and month, the deadliest events and FEMA's declarations.