Mason County, Michigan: hazard risk
FEMA rates Mason County's overall risk Very Low (score 25.3 of 100, higher than 25% 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 258 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 | 94.1 | $459K |
| Strong Wind | Relatively Moderate | 58.7 | $540K |
| Riverine Flooding | Relatively Low | 44.8 | $4.4M |
| Cold Wave | Relatively Low | 42.0 | $540K |
| Lightning | Relatively Low | 31.7 | $89K |
| Ice Storm | Relatively Low | 28.4 | $22K |
| Landslide | Very Low | 60.1 | $2K |
| Wildfire | Very Low | 41.5 | $22K |
| Heat Wave | Very Low | 34.3 | $131K |
| Coastal Flooding | Very Low | 32.8 | $5K |
| Tornado | Very Low | 25.2 | $283K |
| Earthquake | Very Low | 23.4 | $29K |
| Hail | Very Low | 20.9 | $58K |
| Hurricane | Very Low | 15.8 | $3K |
| Drought | 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. |
|---|---|---|---|---|---|
| Winter storms | 126 | 0 | $496K | 20th of 83 | 481st of 3,077 |
| Severe thunderstorm wind | 78 | 0 | $4.3M | 43rd of 83 | 2097th of 3,080 |
| Hail | 23 | 0 | $318K | 70th of 83 | 2588th of 3,080 |
| Floods | 14 | 0 | $12M | 29th of 83 | 2273rd of 3,080 |
| High wind and dust storms | 11 | 0 | $6.2M | 34th of 83 | 1700th of 3,080 |
| Tornadoes | 5 | 0 | $18M | 71st of 83 | 2586th of 3,080 |
| Rip currents and high surf | 1 | 1 | – | 11th of 83 | 179th of 2,080 |
Source: NOAA NCEI Storm Events Database, 1950 to 2026-06-30; damage in 2025 dollars. Search the record at NCEI.
The full Mason County record: every hazard by year and month, the deadliest events and FEMA's declarations.