Lebanon County Climate
Lebanon County, Pennsylvania
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
52.3°F
Annual Precip
46.4"
Annual Snowfall
24.0"
Extreme Heat Days
13
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
7a
Minimum winter temperature range for plant survival
3,214
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Lebanon County
Climate Verdict
Lebanon County has a mild, with an average annual temperature of 52.3°F, moderately wet with 46.4 inches of annual precipitation, rare extreme heat with only 12.8 days above 90°F annually, moderate snowfall of 24.0 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 29.5°F. summers are warm — July averages 74.3°F. The 45°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Lebanon County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Lebanon County closely matches the Pennsylvania statewide average temperature of 49.8°F.
Climate Profile
About Lebanon County Weather
A Classic Four-Season Temperate Zone
Lebanon County’s 52.3°F average temperature places it in the heart of the temperate humid continental zone. This climate offers a diverse weather experience throughout the year, staying near the national median.
Milder Than the State Average
The county stays 2.4 degrees warmer than the Pennsylvania state average of 49.9°F. This relative warmth helps moderate the severity of winter compared to the state's northern mountain counties.
Plenty of Rainfall for Agriculture
With 46.4 inches of annual precipitation, Lebanon is wetter than the state average and slightly outpaces neighboring Lancaster. This ample rainfall fuels the local water table and regional farming.
Moderate Snowfall and Fewer Heatwaves
The county sees 24.0 inches of snow annually, which is average for the region. It experiences only 13 extreme heat days, offering more summer relief than many southern Pennsylvania neighbors.
Winterize for Sub-Freezing Januarys
Heating systems must be ready for a January average of 29.5°F. While extreme heat is less frequent here, adequate ventilation is still needed for the 74.3°F July peaks.
Frequently Asked Questions
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Does it snow in Lebanon County?
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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.