Baltimore County, Maryland: hazard risk

FEMA rates Baltimore County's overall risk Relatively Moderate (score 94.0 of 100, higher than 93% of rated U.S. counties); 6 of its 16 hazards are rated Relatively High or Very High, led by winter weather, lightning, heat wave. Its storm record holds 1,674 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), Baltimore County, by FEMA's rating, then score
HazardRisk ratingScoreExpected annual loss
Winter WeatherVery High99.7$2.7M
LightningVery High98.0$3.2M
Heat WaveRelatively High99.2$43M
Strong WindRelatively High95.8$3.5M
Riverine FloodingRelatively High93.9$67M
Cold WaveRelatively High89.3$7.0M
HurricaneRelatively Moderate92.7$14M
EarthquakeRelatively Moderate92.4$8.4M
HailRelatively Moderate86.0$1.4M
DroughtRelatively Moderate82.3$1.1M
TornadoRelatively Moderate80.4$4.3M
Coastal FloodingRelatively Moderate73.8$1.6M
Ice StormRelatively Moderate69.1$223K
LandslideRelatively Low74.1$9K
WildfireVery Low39.5$27K
AvalancheVery Low9.9$8

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.
Severe thunderstorm wind6462$9.9M12th of 23172nd of 3,080
Floods4842$17M5th of 2375th of 3,080
Winter storms1742–21st of 23887th of 3,077
Hail1460$78K3rd of 23924th of 3,080
Heat4516–18th of 23499th of 3,076
Extreme cold440–19th of 23533rd of 3,076
Tornadoes320$96M9th of 23803rd of 3,080
High wind and dust storms171$1K23rd of 231967th of 3,080
Lightning141$1.7M15th of 23334th of 3,080
Heavy rain110–21st of 23502nd of 3,080
Hurricanes and tropical storms20$470K18th of 23812th of 1,849

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

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

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