Siskiyou County, California: hazard risk
FEMA rates Siskiyou County's overall risk Relatively Moderate (score 89.0 of 100, higher than 88% of rated U.S. counties); 3 of its 14 hazards are rated Relatively High or Very High, led by drought, wildfire, volcanic activity. Its storm record holds 1,446 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 | 98.9 | $5.4M |
| Wildfire | Relatively High | 98.6 | $14M |
| Volcanic Activity | Relatively High | 98.0 | $1.6M |
| Landslide | Relatively Moderate | 91.1 | $47K |
| Riverine Flooding | Relatively Moderate | 90.9 | $31M |
| Avalanche | Relatively Moderate | 83.2 | $502K |
| Winter Weather | Relatively Moderate | 74.5 | $118K |
| Earthquake | Relatively Low | 88.2 | $2.9M |
| Heat Wave | Relatively Low | 77.8 | $991K |
| Lightning | Relatively Low | 35.3 | $98K |
| Hail | Very Low | 19.8 | $51K |
| Cold Wave | Very Low | 6.6 | $26K |
| Strong Wind | Very Low | 5.8 | $28K |
| Tornado | Very Low | 1.9 | $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. |
|---|---|---|---|---|---|
| Winter storms | 658 | 1 | $2.7M | 26th of 57 | 2309th of 3,077 |
| Extreme cold | 296 | 1 | – | 12th of 57 | 803rd of 3,076 |
| High wind and dust storms | 223 | 0 | – | 47th of 57 | 1623rd of 3,080 |
| Wildfires | 131 | 8 | $230M | 33rd of 57 | 215th of 2,972 |
| Heat | 39 | 0 | – | 46th of 57 | 2114th of 3,076 |
| Floods | 38 | 1 | $31M | 52nd of 57 | 2932nd of 3,080 |
| Hail | 23 | 0 | – | 39th of 57 | 2962nd of 3,080 |
| Severe thunderstorm wind | 15 | 0 | $321K | 41st of 57 | 3005th of 3,080 |
| Landslides and avalanches | 11 | 1 | – | 38th of 57 | 296th of 2,278 |
| Heavy rain | 9 | 0 | – | 56th of 57 | 2290th of 3,080 |
| Lightning | 2 | 0 | – | 36th of 57 | 2394th of 3,080 |
| Tornadoes | 1 | 0 | – | 48th of 57 | 2980th 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 Siskiyou County record: every hazard by year and month, the deadliest events and FEMA's declarations.