Greene County, Iowa: hazard risk
FEMA rates Greene County's overall risk Very Low (score 31.8 of 100, higher than 31% of rated U.S. counties); 1 of its 14 hazards are rated Relatively High or Very High, led by drought. Its storm record holds 557 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 High | 96.9 | $4.5M |
| Cold Wave | Relatively Moderate | 65.7 | $2.1M |
| Tornado | Relatively Moderate | 65.5 | $2.6M |
| Hail | Relatively Low | 63.1 | $502K |
| Winter Weather | Relatively Low | 45.5 | $65K |
| Ice Storm | Relatively Low | 39.3 | $61K |
| Strong Wind | Relatively Low | 39.2 | $481K |
| Landslide | Very Low | 33.5 | $481 |
| Heat Wave | Very Low | 15.7 | $46K |
| Hurricane | Very Low | 12.8 | $4K |
| Riverine Flooding | Very Low | 12.0 | $1.8M |
| Earthquake | Very Low | 11.1 | $13K |
| Wildfire | Very Low | 10.3 | $4K |
| Lightning | Very Low | 9.1 | $35K |
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 | 123 | 4 | $1.5M | 62nd of 99 | 1200th of 3,080 |
| Severe thunderstorm wind | 117 | 0 | $1.7M | 98th of 99 | 2101st of 3,080 |
| Winter storms | 85 | 0 | $3.5M | 66th of 99 | 1038th of 3,077 |
| Floods | 63 | 0 | $33M | 42nd of 99 | 792nd of 3,080 |
| Heavy rain | 37 | 0 | – | 39th of 99 | 218th of 3,080 |
| High wind and dust storms | 37 | 0 | $1.8M | 33rd of 99 | 641st of 3,080 |
| Drought | 30 | 0 | $148M | 40th of 99 | 896th of 3,063 |
| Tornadoes | 30 | 0 | $11M | 90th of 99 | 1566th of 3,080 |
| Extreme cold | 28 | 0 | $5.9M | 43rd of 99 | 494th of 3,076 |
| Heat | 4 | 0 | $177K | 66th of 99 | 1712th of 3,076 |
Source: NOAA NCEI Storm Events Database, 1950 to 2026-06-30; damage in 2025 dollars. Search the record at NCEI.
The full Greene County record: every hazard by year and month, the deadliest events and FEMA's declarations.