About Dexter, ME's Climate & Weather History

Dexter, in Maine, United States, is home to roughly 2,200 people in the Eastern Time Zone at 45°N latitude.

In 2025, Dexter recorded an average annual temperature of 44°F — about 3.1°F above the 30-year normal of 41°F. The hottest day reached 95°F in August; the coldest was -10°F in January. Total precipitation was 41 inches (drier than usual). The wettest month was May.