Succasunna, in New Jersey, United States, is home to roughly 9,200 people in the Eastern Time Zone at 40.9°N latitude.
In 2025, Succasunna recorded an average annual temperature of 51°F — about 1.9°F below the 30-year normal of 53°F. The hottest day reached 94°F in June; the coldest was 1°F in January. Total precipitation was 41 inches (drier than usual). The wettest month was May.
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