Somerset County Climate
Somerset County, Maine
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
40.7°F
Annual Precip
43.0"
Annual Snowfall
97.0"
Extreme Heat Days
2
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
5a
Minimum winter temperature range for plant survival
1,666
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Somerset County
Climate Verdict
Somerset County has a cool, averaging 40.7°F annually, moderately wet with 43.0 inches of annual precipitation, rare extreme heat with only 2.2714285714285714 days above 90°F annually, heavy winter snowfall averaging 97.0 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 13.2°F. summers are pleasantly cool with July averaging 66.1°F. Residents experience a substantial 53°F difference between winter and summer.
Outdoor & Gardening Guidance
Winter sports enthusiasts benefit from reliable snow cover for 3-4 months annually.
Regional Context
Somerset County is 3.1°F cooler than the Maine statewide average of 43.8°F, it is somewhat drier than average for Maine.
Climate Profile
About Somerset County Weather
Somerset's extreme northern chill
Somerset County averages just 40.7°F annually, sitting over 13 degrees below the national median. This represents one of the most rigorous continental climates in the continental U.S.
Maine's most frigid interior
Somerset is more than 3 degrees colder than the Maine state average of 43.8°F. Its inland, northern position creates a climate far colder than the coastal counties.
The coldest in the region
At 40.7°F, Somerset is noticeably colder than neighboring Piscataquis (41.8°F) and Oxford (42.6°F). It also faces the state's highest snow loads, averaging 97.0 inches annually.
Sustained winter and brief summers
January is exceptionally cold with an average of 13.2°F, driving nearly 100 inches of snow. July is the only truly warm month, averaging 66.1°F with only 2 days of extreme heat.
Winter readiness is mandatory
Residents require high-BTU heating systems to handle the 16.4°F average winter temperature. Preparing for 97 inches of snow requires professional-grade equipment and advanced home insulation.
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.