Maine Climate Data
NOAA 30-year climate normals for all 16 counties.
State Avg Temp
43.8°F
Hottest County
Hancock County
47.3°F avg
Coldest County
Aroostook County
39.6°F avg
Wettest County
Hancock County
55.5" precip
All Maine Counties
Androscoggin County
44.5°F avg
Aroostook County
39.6°F avg
Cumberland County
45.3°F avg
Franklin County
40.7°F avg
Hancock County
47.3°F avg
Kennebec County
45.7°F avg
Knox County
46.0°F avg
Lincoln County
46.1°F avg
Oxford County
42.6°F avg
Penobscot County
43.3°F avg
Piscataquis County
41.8°F avg
Sagadahoc County
44.6°F avg
Somerset County
40.7°F avg
Waldo County
44.1°F avg
Washington County
43.8°F avg
York County
45.5°F avg
Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.