Mason County Climate
Mason County, West Virginia
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
53.0°F
Annual Precip
44.2"
Annual Snowfall
—
Extreme Heat Days
21
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6b
Minimum winter temperature range for plant survival
3,379
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Mason County
Climate Verdict
Mason County has a mild, with an average annual temperature of 53.0°F, moderately wet with 44.2 inches of annual precipitation, occasional hot days — 21.3 per year above 90°F. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 30.8°F. summers are warm — July averages 73.9°F. The 43°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Mason County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Mason County closely matches the West Virginia statewide average temperature of 52.8°F, it is somewhat drier than average for West Virginia.
Climate Profile
About Mason County Weather
Average National Temperatures and Lower Rainfall
Mason County's 53.0°F annual average aligns perfectly with the national median for temperate zones. It is drier than many eastern counties, receiving 44.2 inches of annual precipitation.
A Drier Pocket in the Mountain State
Mason is slightly warmer than the state average of 52.8°F but receives significantly less rain. Its 44.2 inches of precipitation is nearly 3 inches below the West Virginia state average of 47.0 inches.
Moderate Extremes Along the Ohio River
The county sees 21 days of extreme heat, roughly half of what is experienced in Logan County to the south. This makes Mason a more moderate choice for those avoiding intense Appalachian summer heat.
Cold Mid-Winters and Balanced Summers
July temperatures average 73.9°F, while January cools down to a 30.8°F mean. While snowfall data is not recorded, the county experiences 21 days where temperatures exceed 90°F.
Protect Pipes and Plan Outdoor Activities
The 30.8°F January average requires winterizing outdoor plumbing to prevent freezing. With 44.2 inches of rain, this is one of the better West Virginia counties for planning consistent outdoor recreation.
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.