Hillside Lake is a city of approximately 1,100 people in New York, United States. Located in the Eastern Time Zone at 41.6°N latitude.
In 2025, Hillside Lake recorded an average annual temperature of 50°F — right at the 30-year normal of 51°F. The hottest day reached 95°F in June; the coldest was -2°F in January. Total precipitation was 44 inches (wetter than usual). The wettest month was May.
View current conditions and forecast for Hillside Lake · More cities in New York