Kane County, Illinois: hazard risk
FEMA rates Kane County's overall risk Relatively High (score 94.6 of 100, higher than 94% of rated U.S. counties); 4 of its 14 hazards are rated Relatively High or Very High, led by cold wave, tornado, riverine flooding. Its storm record holds 1,147 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 |
|---|---|---|---|
| Cold Wave | Very High | 99.2 | $50M |
| Tornado | Relatively High | 98.6 | $38M |
| Riverine Flooding | Relatively High | 95.5 | $99M |
| Lightning | Relatively High | 88.0 | $1.3M |
| Heat Wave | Relatively Moderate | 90.0 | $3.7M |
| Winter Weather | Relatively Moderate | 77.4 | $222K |
| Strong Wind | Relatively Moderate | 77.3 | $1.4M |
| Drought | Relatively Moderate | 65.7 | $495K |
| Ice Storm | Relatively Moderate | 63.6 | $192K |
| Earthquake | Relatively Low | 86.4 | $3.9M |
| Hail | Relatively Low | 63.6 | $521K |
| Landslide | Very Low | 51.1 | $2K |
| Wildfire | Very Low | 32.7 | $21K |
| Hurricane | Very Low | 21.2 | $8K |
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. |
|---|---|---|---|---|---|
| Severe thunderstorm wind | 563 | 0 | $1.8M | 5th of 102 | 299th of 3,080 |
| Hail | 225 | 0 | $69K | 7th of 102 | 329th of 3,080 |
| Winter storms | 96 | 1 | $294K | 36th of 102 | 766th of 3,077 |
| Floods | 70 | 0 | $44M | 31st of 102 | 696th of 3,080 |
| High wind and dust storms | 53 | 0 | $276K | 24th of 102 | 525th of 3,080 |
| Tornadoes | 43 | 0 | $37M | 29th of 102 | 377th of 3,080 |
| Extreme cold | 32 | 2 | – | 27th of 102 | 442nd of 3,076 |
| Drought | 16 | 0 | – | 42nd of 102 | 1325th of 3,063 |
| Heavy rain | 16 | 0 | – | 14th of 102 | 392nd of 3,080 |
| Lightning | 16 | 1 | $1.7M | 5th of 102 | 228th of 3,080 |
| Heat | 11 | 1 | – | 71st of 102 | 966th 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 Kane County record: every hazard by year and month, the deadliest events and FEMA's declarations.