Cumberland County Climate
Cumberland County, Maine
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
45.3°F
Annual Precip
49.4"
Annual Snowfall
75.2"
Extreme Heat Days
4
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6a
Minimum winter temperature range for plant survival
2,100
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Cumberland County
Climate Verdict
Cumberland County has a cool, averaging 45.3°F annually, moderately wet with 49.4 inches of annual precipitation, rare extreme heat with only 4.159999999999999 days above 90°F annually, heavy winter snowfall averaging 75.2 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 20.4°F. summers are pleasantly cool with July averaging 68.9°F. The 48°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Winter sports enthusiasts benefit from reliable snow cover for 3-4 months annually.
Regional Context
Cumberland County closely matches the Maine statewide average temperature of 43.8°F.
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 sources: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020. Forecast and alert data from National Weather Service API. Air quality data from Open-Meteo.
Climate normals are 30-year averages of weather variables. Station data is aggregated to county level. Forecasts and alerts are fetched live and may change frequently. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.