Ronkonkoma, in New York, United States, is home to roughly 19,100 people in the Eastern Time Zone at 40.8°N latitude.
In 2025, Ronkonkoma recorded an average annual temperature of 53°F — right at the 30-year normal of 53°F. The hottest day reached 100°F in June; the coldest was 7°F in January. Total precipitation was 45 inches (near normal). Snowfall totaled 8 inches, below the 32-inch average. The wettest month was May.
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