With a population of around 8,400, Mahopac sits in New York, United States. The city operates in the Eastern Time Zone.
In 2025, Mahopac recorded an average annual temperature of 50°F — about 0.7°F above the 30-year normal of 50°F. The hottest day reached 94°F in June; the coldest was -2°F in January. Total precipitation was 44 inches (drier than usual). The wettest month was May.
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