Lewis County, Missouri: hazard risk
FEMA rates Lewis County's overall risk Very Low (score 27.4 of 100, higher than 27% of rated U.S. counties). Its storm record holds 405 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 |
|---|---|---|---|
| Heat Wave | Relatively Moderate | 83.0 | $1.6M |
| Strong Wind | Relatively Moderate | 58.5 | $622K |
| Landslide | Relatively Low | 64.1 | $3K |
| Drought | Relatively Low | 62.2 | $287K |
| Hail | Relatively Low | 59.1 | $326K |
| Lightning | Relatively Low | 41.4 | $151K |
| Riverine Flooding | Relatively Low | 37.1 | $3.9M |
| Cold Wave | Relatively Low | 36.6 | $509K |
| Tornado | Relatively Low | 32.8 | $536K |
| Earthquake | Very Low | 38.5 | $124K |
| Wildfire | Very Low | 36.7 | $19K |
| Winter Weather | Very Low | 20.3 | $16K |
| Ice Storm | Very Low | 20.1 | $14K |
| Hurricane | Very Low | 12.3 | $2K |
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. |
|---|---|---|---|---|---|
| Hail | 115 | 0 | $66K | 69th of 114 | 1001st of 3,080 |
| Severe thunderstorm wind | 110 | 1 | $1.1M | 71st of 114 | 1721st of 3,080 |
| Winter storms | 53 | 0 | – | 42nd of 114 | 1481st of 3,077 |
| Floods | 44 | 2 | $14M | 66th of 114 | 937th of 3,080 |
| Heat | 41 | 0 | – | 33rd of 114 | 362nd of 3,076 |
| Tornadoes | 14 | 0 | $18M | 98th of 114 | 1950th of 3,080 |
| High wind and dust storms | 10 | 0 | $7K | 19th of 114 | 1902nd of 3,080 |
| Extreme cold | 8 | 0 | – | 55th of 114 | 1348th of 3,076 |
| Drought | 6 | 0 | – | 105th of 114 | 1926th of 3,063 |
| Lightning | 3 | 0 | – | 27th of 114 | 1094th 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 Lewis County record: every hazard by year and month, the deadliest events and FEMA's declarations.