Westchester County Climate
Westchester County, New York
Avg Annual Temp
51.6°F
Annual Precip
49.8"
Annual Snowfall
36.1"
Extreme Heat Days
12.833333333333334
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Westchester County Weather
A Warmer Profile than the National Median
Westchester County maintains an annual average temperature of 51.6°F, placing it slightly below the national median for temperate zones. While it experiences traditional Northeast cycles, it remains warmer than many of its northern counterparts.
One of New York's Warmest Counties
At 51.6°F, Westchester sits more than four degrees above the New York state average of 47.4°F. This makes it one of the milder regions in the state, benefitting from its coastal proximity and southern location.
Wetter Conditions than Inland Neighbors
The county receives 49.8 inches of annual precipitation, which is significantly higher than the state average of 43.3 inches. This surplus moisture distinguishes it from drier neighboring regions further inland.
A Balance of Summer Heat and Snow
Westchester experiences 13 extreme heat days over 90°F each year, largely during its 71.3°F average summer. Winter brings 36.1 inches of snow as temperatures drop to a chilly January average of 29.1°F.
Preparing for Humidity and Winter Chill
Residents should maintain efficient cooling systems to handle 13 days of extreme heat and July highs of 73.6°F. Robust drainage and winter tires are also wise given the 49.8 inches of annual rainfall and seasonal snowfall.
Frequently Asked Questions
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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.