Greene County Climate
Greene County, Pennsylvania
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
51.5°F
Annual Precip
44.1"
Annual Snowfall
30.1"
Extreme Heat Days
15
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6b
Minimum winter temperature range for plant survival
3,035
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Greene County
Climate Verdict
Greene County has a mild, with an average annual temperature of 51.5°F, moderately wet with 44.1 inches of annual precipitation, rare extreme heat with only 15.45 days above 90°F annually, moderate snowfall of 30.1 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 29.4°F. summers are warm — July averages 72.3°F. The 43°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Greene County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Greene County closely matches the Pennsylvania statewide average temperature of 49.8°F.
Climate Profile
About Greene County Weather
A Warmer Mid-Atlantic Outlier
Greene County averages 51.5°F annually, positioning it as a warmer outlier in the Mid-Atlantic’s continental climate. This results in longer growing seasons and shorter periods of deep freeze.
Beating the State Average
It ranks as one of Pennsylvania’s warmest counties, sitting 1.6 degrees above the state average of 49.9°F. Despite the heat, it is slightly drier than the state average with 44.1 inches of rain.
The Region's Heat Record
Greene experiences 15 days of extreme heat, the highest in the region and five times Erie's frequency. Its 30.1 inches of snow is the lowest among these eight counties.
Milder Winters, Hotter Summers
July is warm at 72.3°F, while January stays relatively mild at 29.4°F. The lack of heavy snow—just 30 inches annually—defines its gentle winter character.
Maximize the Milder Seasons
Focus on sun protection and efficient cooling systems for the 15 annual extreme heat days. Outdoor planning can take advantage of the milder winters and lower snowfall totals.
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.