Bronx County, New York: hazard risk

FEMA rates Bronx County's overall risk Relatively High (score 98.3 of 100, higher than 98% of rated U.S. counties); 9 of its 15 hazards are rated Relatively High or Very High, led by cold wave, strong wind, winter weather. Its storm record holds 401 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).

National Risk Index (December 2025), Bronx County, by FEMA's rating, then score
HazardRisk ratingScoreExpected annual loss
Cold WaveVery High99.6$31M
Strong WindVery High99.3$6.2M
Winter WeatherVery High99.3$1.1M
Heat WaveRelatively High99.6$39M
Riverine FloodingRelatively High98.5$100M
HurricaneRelatively High95.3$13M
LightningRelatively High94.7$999K
Ice StormRelatively High86.9$385K
Coastal FloodingRelatively High85.6$2.3M
EarthquakeRelatively Moderate96.7$14M
HailRelatively Moderate88.0$829K
TornadoRelatively Moderate85.2$2.9M
LandslideVery Low44.4$500
WildfireVery Low2.4$498
DroughtNo Rating0.0$0

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

Storm records by hazard, with the county's rank by days with a record per 1,000 sq mi over each hazard's complete period
HazardRecordsDeathsDamageRank in stateRank in U.S.
Winter storms1141$32M
Floods1022$76M
High wind and dust storms543$1.8M
Severe thunderstorm wind442$353K
Heat1742–
Drought160–
Heavy rain160–
Extreme cold115–
Hail110$31K
Hurricanes and tropical storms71$3.9M
Lightning61$163K
Tornadoes10$203K

Source: NOAA NCEI Storm Events Database, 1950 to 2026-06-30; damage in 2025 dollars. Search the record at NCEI.

The full Bronx County record: every hazard by year and month, the deadliest events and FEMA's declarations.

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