Monongalia County Climate
Monongalia County, West Virginia
Avg Annual Temp
52.6°F
Annual Precip
44.3"
Annual Snowfall
14.4"
Extreme Heat Days
15.5
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Monongalia County Weather
Temperate climate in Northern West Virginia
Monongalia County averages 52.6°F annually, which is cooler than the national median of 55°F. This creates a balanced four-season climate typical of the Appalachian plateau.
A statistical match for the state
The county's annual average of 52.6°F is nearly identical to the West Virginia state average of 52.8°F. Precipitation levels are also consistent with the state, coming in at 44.3 inches against the 47.0-inch average.
Consistent with regional patterns
Monongalia shares a nearly identical climate with Ohio County to the west, both averaging 52.6°F. It remains much more temperate than Mingo County, which is 5 degrees warmer on average.
Mild summers and moderate snow
The county enjoys manageable summers with only 16 days reaching above 90°F. Winter brings a steady 14.4 inches of snow and a January average of 30.6°F.
Versatile gear for all seasons
The moderate snowfall and limited extreme heat days make this a great area for outdoor activities most of the year. Residents should keep basic snow tools ready for the 14 inches of annual accumulation.
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.