Frederick County Climate
Frederick County, Virginia
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
52.8°F
Annual Precip
40.0"
Annual Snowfall
25.1"
Extreme Heat Days
24
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
7a
Minimum winter temperature range for plant survival
3,247
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Frederick County
Climate Verdict
Frederick County has a mild, with an average annual temperature of 52.8°F, moderately wet with 40.0 inches of annual precipitation, occasional hot days — 24.450000000000003 per year above 90°F, moderate snowfall of 25.1 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 31.3°F. summers are warm — July averages 74.2°F. The 43°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Frederick County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Frederick County is 3.5°F cooler than the Virginia statewide average of 56.2°F, it is also noticeably drier, receiving 6.0 inches less precipitation than the state average.
Climate Profile
About Frederick County Weather
Cooler Mountain Air in Frederick County
Frederick County averages 52.8°F annually, placing it slightly below the national median for temperature. The region experiences a humid continental climate with distinct seasonal shifts and moderate precipitation of 40.0 inches.
Below the State Temperature Average
The county's annual average of 52.8°F is cooler than the Virginia state average of 55.9°F. This lower temperature profile reflects its position in the northern Shenandoah Valley.
Snowier Peaks Than Eastern Neighbors
Frederick receives 25.1 inches of snow annually, which is significantly higher than coastal or central Virginia neighbors. It maintains a cooler summer average of 72.1°F compared to the warmer urban corridors to the east.
Cold Winters and Managed Summer Heat
Winter temperatures average 33.4°F, supporting the county's robust annual snowfall. While summers reach a July average of 74.2°F, residents only face about 24 days of extreme heat above 90°F.
Prepare for Snow and Seasonal Shifts
Residents should invest in high-quality snow removal equipment to manage over two feet of annual snowfall. Reliable home heating systems are essential for the sub-freezing January nights that average 31.3°F.
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.