Maine winter weather risk
Penobscot County has the highest winter weather risk in Maine, scoring 99.7 out of 100 — rated "Very High" by FEMA's National Risk Index.
| # | County | NRI score | Rating |
NOAA events 2016–2026 |
|---|---|---|---|---|
| 1 | Penobscot County | 99.7 | Very High | 0 |
| 2 | Aroostook County | 99.2 | Very High | 0 |
| 3 | Cumberland County | 99 | Very High | 0 |
| 4 | Kennebec County | 97.6 | Very High | 0 |
| 5 | Androscoggin County | 96.5 | Very High | 0 |
| 6 | Waldo County | 96.2 | Relatively High | 0 |
| 7 | Hancock County | 95.6 | Relatively High | 0 |
| 8 | Oxford County | 94.9 | Relatively High | 0 |
| 9 | Somerset County | 94.9 | Relatively High | 0 |
| 10 | Washington County | 94.5 | Relatively High | 0 |
| 11 | Lincoln County | 90.9 | Relatively High | 0 |
| 12 | Knox County | 90.5 | Relatively High | 0 |
| 13 | Piscataquis County | 89.2 | Relatively High | 0 |
| 14 | Franklin County | 88.1 | Relatively High | 0 |
| 15 | Sagadahoc County | 81.6 | Relatively Moderate | 0 |
| 16 | York County | 67.5 | Relatively Moderate | 0 |
Source: FEMA National Risk Index v1.20.0, December 2025. Scores are 0–100 percentile rankings among all US counties. See the methodology page for definitions. Download the full CSV for all counties.
Winter Weather risk nationally:
Other hazard risks in Maine:
Frequently asked questions
What is the highest winter weather risk county in Maine?
Penobscot County, ME has the highest winter weather risk in Maine, with a FEMA National Risk Index score of 99.7 out of 100 (rated "Very High").
How many counties in Maine are rated Very High for winter weather risk?
5 of 16 scored Maine counties are rated "Very High" for winter weather risk by FEMA's National Risk Index.
What causes winter weather risk in Maine?
Winter weather risk captures expected losses from heavy snow, blizzards, and mixed precipitation. Highest scores appear in the Great Lakes snowbelt, northern Rockies, and interior Northeast, where lake-effect and orographic snowfall is frequent. Winter weather impacts transportation networks, utilities, agriculture, and population health.