Somerset County Climate
Somerset County, Maine
Avg Annual Temp
40.7°F
Annual Precip
43.0"
Annual Snowfall
97.0"
Extreme Heat Days
2.2714285714285714
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
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
What is the average temperature in Somerset County?
How much rain does Somerset County get?
Does it snow in Somerset County?
How hot does Somerset County get in summer?
How cold are winters in Somerset County?
Track your own weather in Somerset County
Ambient Weather personal weather stations give you hyperlocal climate data.
Sponsored
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.