Coos County, New Hampshire: hazard risk
FEMA rates Coos County's overall risk Relatively Low (score 72.8 of 100, higher than 72% of rated U.S. counties); 2 of its 15 hazards are rated Relatively High or Very High, led by avalanche, winter weather. Its storm record holds 976 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 |
|---|---|---|---|
| Avalanche | Very High | 97.5 | $4.6M |
| Winter Weather | Relatively High | 88.4 | $312K |
| Cold Wave | Relatively Moderate | 87.4 | $5.0M |
| Riverine Flooding | Relatively Moderate | 77.6 | $15M |
| Ice Storm | Relatively Moderate | 69.1 | $180K |
| Landslide | Relatively Low | 81.5 | $16K |
| Hurricane | Relatively Low | 77.1 | $1.1M |
| Lightning | Relatively Low | 52.4 | $219K |
| Strong Wind | Relatively Low | 22.8 | $182K |
| Earthquake | Very Low | 49.0 | $222K |
| Wildfire | Very Low | 16.4 | $5K |
| Heat Wave | Very Low | 12.7 | $24K |
| Tornado | Very Low | 10.6 | $63K |
| Hail | Very Low | 6.1 | $15K |
| Drought | 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 | 394 | 1 | $1.3M | 9th of 10 | 1195th of 3,077 |
| Severe thunderstorm wind | 175 | 2 | $1.1M | 10th of 10 | 2556th of 3,080 |
| Floods | 134 | 0 | $18M | 10th of 10 | 1787th of 3,080 |
| High wind and dust storms | 86 | 0 | $178K | 10th of 10 | 1540th of 3,080 |
| Hail | 62 | 0 | $2K | 10th of 10 | 2716th of 3,080 |
| Extreme cold | 52 | 2 | – | 7th of 10 | 1398th of 3,076 |
| Drought | 43 | 0 | $1.4M | 8th of 10 | 1865th of 3,063 |
| Tornadoes | 8 | 0 | $1.2M | 10th of 10 | 2654th of 3,080 |
| Lightning | 6 | 0 | $274K | 10th of 10 | 1666th of 3,080 |
| Heat | 4 | 0 | – | 9th of 10 | 2320th of 3,076 |
| Heavy rain | 4 | 0 | $24K | 8th of 10 | 2020th of 3,080 |
| Hurricanes and tropical storms | 4 | 0 | – | 10th of 10 | 1007th of 1,849 |
| Landslides and avalanches | 4 | 4 | – | 1st of 10 | 254th of 2,278 |
Source: NOAA NCEI Storm Events Database, 1950 to 2026-06-30; damage in 2025 dollars. Search the record at NCEI.
The full Coos County record: every hazard by year and month, the deadliest events and FEMA's declarations.