Blair County Climate
Blair County, Pennsylvania
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
50.4°F
Annual Precip
41.4"
Annual Snowfall
34.1"
Extreme Heat Days
8
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6b
Minimum winter temperature range for plant survival
2,896
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Blair County
Climate Verdict
Blair County has a mild, with an average annual temperature of 50.4°F, moderately wet with 41.4 inches of annual precipitation, rare extreme heat with only 7.866666666666667 days above 90°F annually, moderate snowfall of 34.1 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 27.6°F. summers are warm — July averages 72.1°F. The 45°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Blair County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Blair County closely matches the Pennsylvania statewide average temperature of 49.8°F, it is somewhat drier than average for Pennsylvania.
Climate Profile
About Blair County Weather
Cooler mountain air in Central PA
Blair County has an annual average temperature of 50.4°F, which is about 3 degrees cooler than the national median. It receives 41.4 inches of precipitation, making it slightly drier than many parts of the eastern United States. The local climate is defined by the ridge-and-valley geography of the central part of the state.
Right in line with state norms
Blair County’s 50.4°F average temperature sits just above the Pennsylvania state average of 49.9°F. However, it is drier than most of the state, receiving 4 inches less precipitation than the state average of 45.3 inches. This makes for a climate that is typical of the state but with slightly less rainfall and snow than the wettest counties.
More snow than its southern neighbors
Blair County receives 34.1 inches of snow annually, which is more than neighboring Bedford County’s 31.9 inches. It is also cooler during the summer, with only 8 days of extreme heat compared to Bedford's 14. This makes Blair a slightly more temperate option for those who prefer cooler summer months.
Temperate summers and snowy winters
Summer in Blair is mild, with a July average of 72.1°F and very few days exceeding 90°F. Winter is more rigorous, featuring a January average of 27.6°F and over 34 inches of snow. The average winter temperature sits at 29.9°F, keeping the landscape snowy for much of the season.
Focus on snow removal and insulation
With 34.1 inches of snow, residents should ensure they have reliable snow removal equipment and winter tires. The 27.6°F January average requires well-maintained heating systems to handle the consistent sub-freezing nights. Since extreme heat is rare, residents might find that high-quality fans can supplement cooling on all but the hottest days.
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.