Glenn County, California: hazard risk
FEMA rates Glenn County's overall risk Relatively Low (score 74.4 of 100, higher than 74% of rated U.S. counties); 1 of its 14 hazards are rated Relatively High or Very High, led by drought. Its storm record holds 347 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 | 99.5 | $21M |
| Earthquake | Relatively Moderate | 92.5 | $9.8M |
| Wildfire | Relatively Moderate | 91.8 | $2.2M |
| Landslide | Relatively Low | 86.7 | $47K |
| Heat Wave | Relatively Low | 74.8 | $1.4M |
| Riverine Flooding | Relatively Low | 42.3 | $6.5M |
| Volcanic Activity | Very Low | 51.5 | $17 |
| Lightning | Very Low | 19.9 | $84K |
| Avalanche | Very Low | 14.9 | $23 |
| Tornado | Very Low | 8.8 | $65K |
| Hail | Very Low | 6.0 | $20K |
| Strong Wind | Very Low | 2.8 | $17K |
| Winter Weather | Very Low | 1.3 | $173 |
| 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. |
|---|---|---|---|---|---|
| Drought | 75 | 0 | – | 17th of 57 | 1287th of 3,063 |
| Winter storms | 75 | 0 | – | 23rd of 57 | 2172nd of 3,077 |
| Heat | 47 | 3 | – | 23rd of 57 | 945th of 3,076 |
| High wind and dust storms | 45 | 2 | $52M | 42nd of 57 | 1468th of 3,080 |
| Floods | 31 | 1 | $5.8M | 38th of 57 | 2381st of 3,080 |
| Wildfires | 27 | 6 | $71M | 22nd of 57 | 155th of 2,972 |
| Extreme cold | 13 | 3 | $4.3M | 30th of 57 | 1931st of 3,076 |
| Tornadoes | 11 | 0 | $2.3M | 13th of 57 | 2584th of 3,080 |
| Hail | 8 | 0 | $213K | 38th of 57 | 2960th of 3,080 |
| Heavy rain | 3 | 0 | – | 52nd of 57 | 1835th of 3,080 |
| Severe thunderstorm wind | 3 | 0 | – | 45th of 57 | 3017th of 3,080 |
| Rip currents and high surf | 2 | 0 | – | 21st of 57 | 199th of 2,080 |
Source: NOAA NCEI Storm Events Database, 1950 to 2026-06-30; damage in 2025 dollars. Search the record at NCEI.
The full Glenn County record: every hazard by year and month, the deadliest events and FEMA's declarations.