Monona County, Iowa: hazard risk
FEMA rates Monona County's overall risk Very Low (score 25.1 of 100, higher than 25% of rated U.S. counties). Its storm record holds 516 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 |
|---|---|---|---|
| Drought | Relatively Moderate | 89.3 | $1.6M |
| Hail | Relatively Moderate | 82.6 | $1.0M |
| Landslide | Relatively Low | 76.8 | $11K |
| Wildfire | Relatively Low | 63.5 | $112K |
| Tornado | Relatively Low | 58.0 | $1.7M |
| Ice Storm | Relatively Low | 43.2 | $64K |
| Strong Wind | Relatively Low | 39.0 | $412K |
| Cold Wave | Relatively Low | 33.6 | $509K |
| Heat Wave | Very Low | 31.7 | $153K |
| Riverine Flooding | Very Low | 25.0 | $3.0M |
| Earthquake | Very Low | 14.0 | $15K |
| Lightning | Very Low | 11.8 | $41K |
| Winter Weather | Very Low | 10.8 | $9K |
| Hurricane | 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. |
|---|---|---|---|---|---|
| Hail | 144 | 0 | $626K | 54th of 99 | 1062nd of 3,080 |
| Severe thunderstorm wind | 136 | 0 | $2.7M | 63rd of 99 | 1818th of 3,080 |
| Winter storms | 69 | 0 | – | 98th of 99 | 1606th of 3,077 |
| Extreme cold | 54 | 0 | – | 8th of 99 | 243rd of 3,076 |
| Tornadoes | 30 | 4 | $677M | 83rd of 99 | 1380th of 3,080 |
| High wind and dust storms | 27 | 0 | $51K | 65th of 99 | 1115th of 3,080 |
| Floods | 23 | 0 | $69M | 98th of 99 | 2058th of 3,080 |
| Heat | 15 | 0 | – | 23rd of 99 | 954th of 3,076 |
| Drought | 10 | 0 | – | 92nd of 99 | 1830th of 3,063 |
Source: NOAA NCEI Storm Events Database, 1950 to 2026-06-30; damage in 2025 dollars. Search the record at NCEI.
The full Monona County record: every hazard by year and month, the deadliest events and FEMA's declarations.