Knox County, Maine: hazard risk

FEMA rates Knox County's overall risk Very Low (score 28.6 of 100, higher than 28% of rated U.S. counties); 2 of its 16 hazards are rated Relatively High or Very High, led by winter weather, ice storm. Its storm record holds 396 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), Knox County, by FEMA's rating, then score
HazardRisk ratingScoreExpected annual loss
Winter WeatherRelatively High90.5$525K
Ice StormRelatively High89.2$1.1M
HurricaneRelatively Moderate82.9$3.8M
Coastal FloodingRelatively Moderate69.2$1.3M
LandslideRelatively Low85.7$41K
LightningRelatively Low49.7$287K
Strong WindRelatively Low38.5$495K
DroughtRelatively Low35.8$56K
Cold WaveRelatively Low28.0$466K
EarthquakeVery Low45.9$279K
AvalancheVery Low30.0$135
Riverine FloodingVery Low21.4$3.2M
HailVery Low20.5$91K
WildfireVery Low16.8$7K
TornadoVery Low12.8$133K
Heat WaveVery Low11.5$28K

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 storms1660$6.3M2nd of 16148th of 3,077
High wind and dust storms631$183K2nd of 16166th of 3,080
Floods530$21M4th of 16832nd of 3,080
Severe thunderstorm wind380–8th of 162533rd of 3,080
Extreme cold220–2nd of 16396th of 3,076
Drought210$1.3M2nd of 16807th of 3,063
Hail110$245K11th of 162757th of 3,080
Lightning90$756K5th of 16286th of 3,080
Hurricanes and tropical storms60$69K4th of 16363rd of 1,849
Heat20–6th of 161836th of 3,076
Heavy rain10–5th of 161708th of 3,080
Landslides and avalanches10$1.1M1st of 16226th of 2,278
Tornadoes10$201K12th of 162762nd of 3,080

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

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

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