Grayson County, Virginia: hazard risk

FEMA rates Grayson County's overall risk Very Low (score 24.7 of 100, higher than 24% of rated U.S. counties). Its storm record holds 465 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), Grayson County, by FEMA's rating, then score
HazardRisk ratingScoreExpected annual loss
LandslideRelatively Moderate91.3$47K
Cold WaveRelatively Moderate79.5$2.5M
DroughtRelatively Low60.5$208K
LightningRelatively Low55.4$202K
Ice StormRelatively Low41.2$40K
Winter WeatherRelatively Low27.3$19K
Strong WindRelatively Low22.8$150K
HurricaneVery Low54.2$80K
WildfireVery Low45.6$25K
AvalancheVery Low44.6$256
EarthquakeVery Low39.9$109K
Riverine FloodingVery Low28.4$2.4M
TornadoVery Low18.6$151K
HailVery Low15.9$39K
Heat WaveNo 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 storms990$35K49th of 96585th of 3,077
High wind and dust storms961$72M2nd of 96115th of 3,080
Severe thunderstorm wind840$321K92nd of 961887th of 3,080
Hail800$10K25th of 961334th of 3,080
Floods531$61M58th of 96888th of 3,080
Drought260$13M3rd of 96781st of 3,063
Extreme cold100$6K28th of 961036th of 3,076
Heavy rain70–81st of 96794th of 3,080
Lightning40$2K44th of 96790th of 3,080
Tornadoes40$394K72nd of 962460th of 3,080
Landslides and avalanches10–11th of 96252nd of 2,278

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

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

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