Sagadahoc County Climate
Sagadahoc County, Maine
Avg Annual Temp
44.6°F
Annual Precip
48.5"
Annual Snowfall
71.8"
Extreme Heat Days
2.1
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Sagadahoc County Weather
Coastal moderation in Sagadahoc
Sagadahoc County averages 44.6°F annually, which is nearly 10 degrees cooler than the national median. Its position along the Atlantic coast prevents the extreme temperature swings found inland.
Warmer than the Maine average
The county is notably warmer than the state average of 43.8°F due to the ocean's influence. It ranks as one of the milder regions in the state, particularly during the winter months.
Comparable to Waldo County
Sagadahoc’s 44.6°F average is very similar to Waldo County at 44.1°F. It stays warmer than inland Penobscot, which averages 43.3°F and sees more volatile seasonal shifts.
Milder winters and rare heat
Winter temperatures average 23.1°F, which is several degrees higher than the state interior. Extreme heat is rare here, with only 2 days per year reaching 90°F or higher.
Managing coastal moisture
With 48.5 inches of annual precipitation, moisture control and dehumidification are key for local homeowners. The 71.8 inches of snow is manageable, but coastal icing remains a frequent winter concern.
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.