Marion County Climate
Marion County, West Virginia
Avg Annual Temp
52.3°F
Annual Precip
49.6"
Annual Snowfall
—
Extreme Heat Days
12.65
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Marion County Weather
Classic Humid Continental Weather Patterns
Marion County averages 52.3°F annually, sitting just below the national median for U.S. counties. With 49.6 inches of precipitation, it is significantly wetter than the average American county.
A Representative West Virginia Climate
The county's 52.3°F average temperature tracks almost perfectly with the state average of 52.8°F. It receives 2.6 inches more precipitation than the statewide average of 47.0 inches.
Mild Summers Compared to Southern Neighbors
Marion experiences only 13 days of extreme heat, making it much more temperate than Logan or Lincoln. Its July average of 72.8°F offers a cooler summer experience than the southern coalfields.
Moderate Summers and Cold January Nights
July is pleasant with a 72.8°F average, while January temperatures drop to a chilly 30.1°F. While specific snowfall data is unavailable, the 32.5°F winter average indicates consistent freezing conditions.
Focus on Insulation and Dehumidification
Strong home insulation is required to manage the sub-freezing January average of 30.1°F. High-capacity dehumidifiers help manage the internal environment during the county's nearly 50 inches of annual precipitation.
Frequently Asked Questions
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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.