Putnam County Climate
Putnam County, New York
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
48.0°F
Annual Precip
50.4"
Annual Snowfall
—
Extreme Heat Days
2
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6b
Minimum winter temperature range for plant survival
2,370
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Putnam County
Climate Verdict
Putnam County has a cool, averaging 48.0°F annually, moderately wet with 50.4 inches of annual precipitation, rare extreme heat with only 2 days above 90°F annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 24.7°F. summers are pleasantly cool with July averaging 69.5°F. The 45°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Putnam County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Putnam County closely matches the New York statewide average temperature of 47.5°F, it is also noticeably wetter, receiving 7.0 inches more precipitation than the state average.
Climate Profile
About Putnam County Weather
Wet and Temperate Mid-Hudson Climate
Putnam County’s 48.0°F annual average is below the national median but representative of the Northeast. It is characterized by high annual precipitation and distinct seasonal shifts.
Slightly Above the State Average
With an average of 48.0°F, Putnam sits 0.6 degrees above the New York state average. Its climate is moderated by the Hudson River and proximity to the Atlantic coast.
The Wettest County in the Region
Putnam leads this group with 50.4 inches of annual precipitation. This makes it significantly wetter than Orleans or Ontario counties further west.
Rainy Months and Mild Summers
Extreme heat is rare here, with only 2 days a year hitting 90°F. While specific snowfall data is limited, the 50.4 inches of total precipitation suggests many rainy and slushy days.
Waterproofing and Drainage are Key
With over 50 inches of precipitation, homeowners must ensure excellent basement drainage and roof integrity. Summer cooling needs are low given only 2 days of extreme heat.
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.