Lyon County, Nevada: hazard risk
FEMA rates Lyon County's overall risk Relatively Low (score 71.4 of 100, higher than 71% of rated U.S. counties); 1 of its 15 hazards are rated Relatively High or Very High, led by winter weather. Its storm record holds 1,322 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).
| Hazard | Risk rating | Score | Expected annual loss |
|---|---|---|---|
| Winter Weather | Relatively High | 90.9 | $476K |
| Wildfire | Relatively Moderate | 96.8 | $7.4M |
| Earthquake | Relatively Moderate | 93.8 | $12M |
| Drought | Relatively Moderate | 69.9 | $570K |
| Heat Wave | Relatively Low | 67.6 | $893K |
| Riverine Flooding | Relatively Low | 63.5 | $11M |
| Lightning | Relatively Low | 55.4 | $313K |
| Ice Storm | Relatively Low | 34.3 | $44K |
| Strong Wind | Relatively Low | 25.2 | $264K |
| Volcanic Activity | Very Low | 50.8 | $15 |
| Landslide | Very Low | 34.4 | $473 |
| Hail | Very Low | 33.5 | $151K |
| Avalanche | Very Low | 21.6 | $48 |
| Tornado | Very Low | 2.2 | $4K |
| Cold Wave | No Rating | 0.0 | $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
| Hazard | Records | Deaths | Damage | Rank in state | Rank in U.S. |
|---|---|---|---|---|---|
| High wind and dust storms | 952 | 5 | $20M | 4th of 17 | 122nd of 3,080 |
| Winter storms | 222 | 7 | $6.1M | 4th of 17 | 1906th of 3,077 |
| Floods | 37 | 2 | $1.2B | 5th of 17 | 2510th of 3,080 |
| Severe thunderstorm wind | 30 | 0 | $114K | 3rd of 17 | 2811th of 3,080 |
| Heavy rain | 19 | 0 | – | 5th of 17 | 1177th of 3,080 |
| Wildfires | 11 | 2 | $16M | 4th of 17 | 470th of 2,972 |
| Hail | 10 | 1 | $7K | 6th of 17 | 2924th of 3,080 |
| Landslides and avalanches | 6 | 0 | $6K | 4th of 17 | 239th of 2,278 |
| Heat | 5 | 0 | – | 8th of 17 | 2352nd of 3,076 |
| Tornadoes | 4 | 0 | $6K | 4th of 17 | 2865th of 3,080 |
| Extreme cold | 3 | 0 | $92K | 7th of 17 | 2847th of 3,076 |
| Lightning | 2 | 0 | $60K | 4th of 17 | 2247th 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.