Colusa County, California: hazard risk
FEMA rates Colusa County's overall risk Relatively Moderate (score 81.1 of 100, higher than 81% of rated U.S. counties); 1 of its 14 hazards are rated Relatively High or Very High, led by drought. Its storm record holds 388 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 | Very High | 99.7 | $29M |
| Earthquake | Relatively Moderate | 90.8 | $5.4M |
| Wildfire | Relatively Moderate | 89.1 | $1.1M |
| Landslide | Relatively Low | 70.6 | $6K |
| Heat Wave | Relatively Low | 65.4 | $679K |
| Riverine Flooding | Relatively Low | 37.9 | $4.1M |
| Volcanic Activity | Very Low | 39.4 | $5 |
| Lightning | Very Low | 16.2 | $50K |
| Avalanche | Very Low | 9.4 | $7 |
| Tornado | Very Low | 9.3 | $51K |
| Hail | Very Low | 6.2 | $16K |
| Strong Wind | Very Low | 4.0 | $23K |
| Winter Weather | Very Low | 1.6 | $476 |
| Cold Wave | 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 | 96 | 0 | $115K | 17th of 57 | 1927th of 3,077 |
| Drought | 84 | 0 | – | 13th of 57 | 1187th of 3,063 |
| High wind and dust storms | 56 | 2 | $52M | 36th of 57 | 1180th of 3,080 |
| Heat | 49 | 3 | – | 22nd of 57 | 878th of 3,076 |
| Wildfires | 36 | 10 | $73M | 16th of 57 | 81st of 2,972 |
| Floods | 32 | 1 | $38M | 36th of 57 | 2351st of 3,080 |
| Extreme cold | 14 | 3 | $4.3M | 25th of 57 | 1815th of 3,076 |
| Heavy rain | 6 | 0 | – | 44th of 57 | 1310th of 3,080 |
| Tornadoes | 4 | 0 | $92K | 26th of 57 | 2714th of 3,080 |
| Rip currents and high surf | 2 | 0 | – | 19th of 57 | 192nd of 2,080 |
| Severe thunderstorm wind | 2 | 0 | – | 43rd of 57 | 3011th of 3,080 |
| Hail | 1 | 0 | – | 55th of 57 | 3025th 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 Colusa County record: every hazard by year and month, the deadliest events and FEMA's declarations.