Lyon County, Kansas: hazard risk

FEMA rates Lyon County's overall risk Relatively Low (score 47.6 of 100, higher than 47% of rated U.S. counties); 2 of its 14 hazards are rated Relatively High or Very High, led by ice storm, winter weather. Its storm record holds 1,047 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), Lyon County, by FEMA's rating, then score
HazardRisk ratingScoreExpected annual loss
Ice StormRelatively High92.7$1.4M
Winter WeatherRelatively High88.8$437K
LightningRelatively Moderate74.1$673K
TornadoRelatively Moderate69.7$2.9M
Strong WindRelatively Moderate53.7$716K
WildfireRelatively Low88.3$1.2M
HailRelatively Low61.8$472K
Heat WaveRelatively Low60.2$679K
DroughtRelatively Low54.7$238K
Cold WaveRelatively Low52.0$1.2M
Riverine FloodingRelatively Low49.3$7.5M
LandslideVery Low40.1$772
EarthquakeVery Low36.8$145K
HurricaneNo 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.
Hail3840$127K67th of 105357th of 3,080
Severe thunderstorm wind3472$524K18th of 105980th of 3,080
Floods881$9.9M20th of 105968th of 3,080
Winter storms822$1.7M54th of 1051706th of 3,077
Tornadoes507$213M27th of 105666th of 3,080
High wind and dust storms240$70K55th of 1051634th of 3,080
Heat211–25th of 105889th of 3,076
Drought110–76th of 1051876th of 3,063
Extreme cold80$142K51st of 1051826th of 3,076
Lightning70$42K21st of 105962nd of 3,080
Heavy rain50–68th of 1051237th 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 Lyon County record: every hazard by year and month, the deadliest events and FEMA's declarations.

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