Graham County, Arizona: hazard risk

FEMA rates Graham County's overall risk Relatively Low (score 64.6 of 100, higher than 64% of rated U.S. counties); 1 of its 14 hazards are rated Relatively High or Very High, led by lightning. Its storm record holds 597 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), Graham County, by FEMA's rating, then score
HazardRisk ratingScoreExpected annual loss
LightningRelatively High93.4$1.2M
Heat WaveRelatively Moderate95.0$4.6M
WildfireRelatively Moderate94.3$2.2M
DroughtRelatively Moderate79.5$677K
Winter WeatherRelatively Moderate73.7$117K
Riverine FloodingRelatively Low67.9$9.0M
AvalancheVery Low54.4$591
EarthquakeVery Low47.9$185K
LandslideVery Low42.9$608
HailVery Low32.4$99K
Strong WindVery Low15.2$95K
HurricaneVery Low13.7$2K
Cold WaveVery Low3.7$3K
TornadoVery Low2.7$4K

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.
Drought1710–3rd of 151759th of 3,063
Severe thunderstorm wind1040$1.6M7th of 152753rd of 3,080
Winter storms980$17K5th of 152770th of 3,077
Heat5921–8th of 151375th of 3,076
Floods541$3.3M13th of 152690th of 3,080
Wildfires430$197K3rd of 15353rd of 2,972
High wind and dust storms340$152K13th of 152558th of 3,080
Hail190$7.4M12th of 152941st of 3,080
Extreme cold94$394K5th of 152683rd of 3,076
Lightning20$109K13th of 152367th of 3,080
Heavy rain10$16K14th of 152381st of 3,080
Landslides and avalanches10–9th of 15432nd of 2,278
Tornadoes10–14th of 152977th 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 Graham County record: every hazard by year and month, the deadliest events and FEMA's declarations.

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