Uniondale is a city of approximately 24,800 people in New York, United States. Located in the Eastern Time Zone at 40.7°N latitude.
In 2025, Uniondale recorded an average annual temperature of 54°F — right at the 30-year normal of 54°F. The hottest day reached 97°F in June; the coldest was 7°F in January. Total precipitation was 48 inches (wetter than usual). The wettest month was May.
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