Arlington County, Virginia: hazard risk

FEMA rates Arlington County's overall risk Relatively Low (score 66.8 of 100, higher than 66% of rated U.S. counties); 1 of its 15 hazards are rated Relatively High or Very High, led by lightning. Its storm record holds 620 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), Arlington County, by FEMA's rating, then score
HazardRisk ratingScoreExpected annual loss
LightningRelatively High82.7$1.2M
Heat WaveRelatively Moderate89.9$4.4M
Winter WeatherRelatively Moderate84.3$381K
Strong WindRelatively Moderate81.2$2.0M
Riverine FloodingRelatively Moderate73.8$23M
HurricaneRelatively Low80.4$3.0M
EarthquakeRelatively Low73.0$1.4M
HailRelatively Low64.2$639K
Ice StormRelatively Low54.8$154K
TornadoRelatively Low44.1$1.5M
Cold WaveRelatively Low30.2$617K
Coastal FloodingVery Low41.6$34K
LandslideVery Low20.8$185
DroughtVery Low18.0$3K
WildfireVery Low5.7$3K

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 wind1790$12M
Winter storms1421$749K
Floods721$5.7M
Heat661–
High wind and dust storms390$6.1M
Extreme cold330–
Hail180$995
Heavy rain110–
Drought90–
Hurricanes and tropical storms70$8.4M
Lightning60$23K
Tornadoes40$2.4M

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

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

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