Orleans County Climate
Orleans County, New York
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
49.3°F
Annual Precip
35.2"
Annual Snowfall
67.0"
Extreme Heat Days
9
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6b
Minimum winter temperature range for plant survival
2,831
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Orleans County
Climate Verdict
Orleans County has a cool, averaging 49.3°F annually, moderate rainfall of 35.2 inches per year, rare extreme heat with only 8.9 days above 90°F annually, heavy winter snowfall averaging 67.0 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 25.4°F. summers are warm — July averages 72.2°F. The 47°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Winter sports enthusiasts benefit from reliable snow cover for 3-4 months annually.
Regional Context
Orleans County closely matches the New York statewide average temperature of 47.5°F, it is also noticeably drier, receiving 8.1 inches less precipitation than the state average.
Climate Profile
About Orleans County Weather
Cool Breezes Along Lake Ontario
Orleans County averages 49.3°F annually, keeping it cooler than the national median. The lake influence regulates temperatures, preventing the extreme spikes seen in the midwest.
Ranks Above the State Average
The county’s 49.3°F average is nearly two degrees warmer than the statewide average of 47.4°F. It is one of the more temperate counties along the Great Lakes shoreline.
The Drier Side of the Region
Orleans is the driest county in this group, receiving only 35.2 inches of annual precipitation. This is nearly 10 inches less than Oswego or Onondaga.
Lakeside Summers and Steady Snow
July averages a warm 72.2°F with 9 days exceeding 90°F. Winter brings 67.0 inches of snow, which is significant but lighter than the lake-effect totals found further east.
Plan for Steady Winter Snowfall
Homeowners should maintain reliable snow blowers for the 67 inches of annual accumulation. The 27.8°F winter average necessitates well-sealed windows to block lake winds.
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.