James City County Climate
James City County, Virginia
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
59.7°F
Annual Precip
51.2"
Annual Snowfall
4.3"
Extreme Heat Days
37
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
8a
Minimum winter temperature range for plant survival
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: James City County
Climate Verdict
James City County has a mild, with an average annual temperature of 59.7°F, moderately wet with 51.2 inches of annual precipitation, occasional hot days — 37.3 per year above 90°F, light snow averaging 4.3 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 39.8°F. summers are warm — July averages 79.3°F. The 40°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
The moderate temperatures support hiking, cycling, and camping comfortably in spring, summer, and fall.
Regional Context
James City County is 3.5°F warmer than the Virginia statewide average of 56.2°F, it is also noticeably wetter, receiving 5.2 inches more precipitation than the state average.
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.