Cumberland County Climate
Cumberland County, Maine
Avg Annual Temp
45.3°F
Annual Precip
49.4"
Annual Snowfall
75.2"
Extreme Heat Days
4.159999999999999
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Cumberland County Weather
Atlantic influence moderates the Maine chill
Cumberland’s 45.3°F annual average is cool by national standards but warmer than much of the northern interior. The Atlantic Ocean helps buffer against the most extreme temperature swings.
One of Maine's most temperate regions
The county sits comfortably above the state average of 43.8°F. It ranks among the warmer areas in the state thanks to its southern coastal positioning.
Milder than the immediate inland counties
Its 45.3°F average beats out Androscoggin's 44.5°F and is significantly milder than Franklin's 40.7°F. This makes it a preferred destination for those seeking slightly less harsh Maine winters.
Reliable snow and manageable summer heat
Residents see about 75.2 inches of snow each year and a modest 4 days of temperatures hitting 90°F. January averages stay around 20.4°F, which is notably warmer than the state interior.
Invest in moisture and winter prep
With 49.4 inches of annual precipitation, a good dehumidifier and rain gear are essential. Snow tires are a standard requirement for navigating the 75.2 inches of annual snowfall.
Frequently Asked Questions
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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.