# Counties in Maine by average annual temperature, 2025

All 16 values come from NOAA National Centers for Environmental Information for 2025, so the places are comparable.

- Indicator id: `average_temperature_annual`
- Unit: °F
- Definition: Mean air temperature from January to December, in degrees Fahrenheit: the average of the 12 monthly mean temperatures. NOAA computes it from its climate divisional dataset (nClimDiv): station readings interpolated onto a 5 km grid and averaged over the area.
- Source: NOAA National Centers for Environmental Information, NOAA Climate at a Glance, January to December average temperature, counties (https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping)
- Publisher page: https://invokely.ai/en/publishers/noaa-ncei
- Retrieved: 2026-10-12
- Citation: NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December average temperature, counties. From the NOAA Monthly U.S. Climate Divisional Database (nClimDiv), doi:10.7289/V5M32STR. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping. Retrieved 2026-10-12.
- Web page: https://invokely.ai/rankings/average-annual-temperature/maine-counties

| Rank | Place | °F |
|---:|---|---:|
| 1 | York County | 46.4 |
| 2 | Sagadahoc County | 46.2 |
| 3 | Lincoln County | 45.9 |
| 4 | Cumberland County | 45.8 |
| 5 | Kennebec County | 45.6 |
| 6 | Androscoggin County | 45.4 |
| 6 | Knox County | 45.4 |
| 8 | Waldo County | 44.9 |
| 9 | Hancock County | 44.7 |
| 10 | Washington County | 44.1 |
| 11 | Penobscot County | 43.3 |
| 12 | Oxford County | 42.8 |
| 13 | Somerset County | 40.9 |
| 14 | Piscataquis County | 40.8 |
| 15 | Franklin County | 40.7 |
| 16 | Aroostook County | 40.1 |