Westchester County Climate
Westchester County, New York
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
51.6°F
Annual Precip
49.8"
Annual Snowfall
36.1"
Extreme Heat Days
13
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
7a
Minimum winter temperature range for plant survival
3,036
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Westchester County
Climate Verdict
Westchester County has a mild, with an average annual temperature of 51.6°F, moderately wet with 49.8 inches of annual precipitation, rare extreme heat with only 12.833333333333334 days above 90°F annually, moderate snowfall of 36.1 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 29.1°F. summers are warm — July averages 73.6°F. The 45°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Westchester County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Westchester County is 4.1°F warmer than the New York statewide average of 47.5°F, it is also noticeably wetter, receiving 6.4 inches more precipitation than the state average.
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 sources: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020. Forecast and alert data from National Weather Service API. Air quality data from Open-Meteo.
Climate normals are 30-year averages of weather variables. Station data is aggregated to county level. Forecasts and alerts are fetched live and may change frequently. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.