Winter Weather Risk in New Hampshire
All New Hampshire counties ranked by FEMA National Risk Index winter weather score
Winter Weather risk — heavy snow, blizzards, and hazardous winter conditions — is rated for 10 of 10 New Hampshire counties in FEMA's National Risk Index. Grafton County carries the state's highest winter weather score at 93.3, with $608K in expected annual winter weather losses.
4 New Hampshire counties are rated High or Very High for winter weather, and expected annual losses from winter weather total roughly $3M statewide. The full ranking below links to each county's complete 18-hazard risk profile.
County Rankings — Winter Weather
| # | County | Winter Weather Score | Rating | Ann. Freq. | Ann. Loss |
|---|---|---|---|---|---|
| 1 | Grafton County | High | 22.07 / yr | $608K | |
| 2 | Carroll County | High | 22.24 / yr | $423K | |
| 3 | Coos County | High | 24.09 / yr | $312K | |
| 4 | Hillsborough County | High | 18.54 / yr | $486K | |
| 5 | Merrimack County | Medium | 19.13 / yr | $268K | |
| 6 | Belknap County | Medium | 20.16 / yr | $208K | |
| 7 | Rockingham County | Medium | 17.08 / yr | $169K | |
| 8 | Cheshire County | Low | 18.69 / yr | $83K | |
| 9 | Strafford County | Low | 19.39 / yr | $75K | |
| 10 | Sullivan County | Low | 19.21 / yr | $77K |
10 New Hampshire counties with measurable winter weather risk. See the national winter weather ranking or all New Hampshire counties by overall risk.
Frequently Asked Questions
Which New Hampshire county has the highest winter weather risk?
Grafton County has the highest FEMA winter weather risk score in New Hampshire at 93.3 (High), with $608K in expected annual losses and about 22.07 events per year.
How many New Hampshire counties face significant winter weather risk?
10 New Hampshire counties record measurable winter weather risk in FEMA's National Risk Index; 4 of them are rated High or Very High.