Decatur County, Tennessee: hazard risk

FEMA rates Decatur County's overall risk Very Low (score 38.4 of 100, higher than 38% of rated U.S. counties). Its storm record holds 371 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), Decatur County, by FEMA's rating, then score
HazardRisk ratingScoreExpected annual loss
Cold WaveRelatively Moderate71.5$1.6M
TornadoRelatively Moderate66.7$1.6M
EarthquakeRelatively Low83.4$1.6M
Heat WaveRelatively Low52.9$298K
Strong WindRelatively Low48.7$370K
LightningRelatively Low38.0$104K
HurricaneVery Low47.0$39K
LandslideVery Low46.9$788
Riverine FloodingVery Low33.5$2.7M
DroughtVery Low29.3$16K
Ice StormVery Low24.3$16K
WildfireVery Low13.3$3K
Winter WeatherVery Low13.0$7K
HailVery Low6.4$13K

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 wind900$4.8M76th of 951055th of 3,080
Heat860–4th of 9550th of 3,076
Hail560$56K36th of 951187th of 3,080
Winter storms470$18K41st of 951081st of 3,077
Floods460$7.2M11th of 95492nd of 3,080
Drought210–35th of 95722nd of 3,063
Extreme cold100–7th of 95902nd of 3,076
Tornadoes80$3.8M66th of 951841st of 3,080
High wind and dust storms30$18K80th of 952403rd of 3,080
Lightning20$26K50th of 951090th of 3,080
Heavy rain10–40th of 951651st of 3,080
Hurricanes and tropical storms10$8K20th of 95838th 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 Decatur County record: every hazard by year and month, the deadliest events and FEMA's declarations.

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