Monson, in Massachusetts, United States, is home to roughly 8,500 people in the Eastern Time Zone at 42.1°N latitude.
In 2025, Monson recorded an average annual temperature of 50°F — right at the 30-year normal of 49°F. The hottest day reached 94°F in June; the coldest was -4°F in January. Total precipitation was 44 inches (near normal). The wettest month was May.
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