Alleghany County Climate
Alleghany County, Virginia
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
52.4°F
Annual Precip
41.3"
Annual Snowfall
18.3"
Extreme Heat Days
7
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
7a
Minimum winter temperature range for plant survival
3,061
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Alleghany County
Climate Verdict
Alleghany County has a mild, with an average annual temperature of 52.4°F, moderately wet with 41.3 inches of annual precipitation, rare extreme heat with only 6.5 days above 90°F annually, light snow averaging 18.3 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 31.9°F. summers are warm — July averages 71.9°F. The 40°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Alleghany County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Alleghany County is 3.8°F cooler than the Virginia statewide average of 56.2°F, it is somewhat drier than average for Virginia, the county experiences 21.280464480874294 fewer extreme heat days than the state average.
Climate Profile
About Alleghany County Weather
Cooler Mountain Air
Alleghany's 52.4°F average temperature is cooler than the national median of 54°F. This reflects a humid continental climate influenced by the Appalachian Mountains.
One of Virginia's Coolest Counties
At 52.4°F, the county is significantly cooler than the 55.9°F Virginia state average. It also sees less rain than the state average, recording 41.3 inches annually.
High Elevation Weather Shifts
Alleghany records 18.3 inches of snow, much higher than the Virginia average. Its mountain location creates a much drier and colder profile than eastern neighbors like Albemarle.
Mild Summers and Snowy Winters
The county only sees 7 days over 90°F, making for very comfortable summers. Winters are cold, averaging 33.8°F with frequent snowfall through the season.
Focus on Winter Readiness
Reliable heating and snow tires are essential for navigating the mountain winters. Air conditioning is less critical here than in the rest of Virginia due to limited 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.