Lewis County Climate
Lewis County, West Virginia
Avg Annual Temp
53.3°F
Annual Precip
51.5"
Annual Snowfall
24.3"
Extreme Heat Days
22.8
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Lewis County Weather
A Temperate Mid-Atlantic Climate Profile
Lewis County averages 53.3°F annually, aligning closely with the national median for temperate climates. The region receives 51.5 inches of precipitation, making it significantly wetter than many central U.S. counties.
Warmer and Wetter Than State Averages
The county temperature sits 0.5 degrees above the West Virginia state average of 52.8°F. Its 51.5 inches of annual rain also exceeds the state average of 47.0 inches by nearly 10 percent.
Moderate Temperatures Among Central Neighbors
Lewis County stays cooler than southern neighbors like Lincoln while maintaining higher precipitation levels. Its 23 days of extreme heat represent a middle ground for the central West Virginia region.
Cold Winters and Humid Summer Days
July temperatures average 73.8°F, but the county still faces 23 days of heat exceeding 90°F annually. Winters bring an average of 24.3 inches of snow, with January temperatures dipping to a 31.2°F mean.
Preparedness for Moisture and Winter Chill
Homeowners should maintain robust gutter systems to handle the high 51.5-inch annual rainfall. Reliable heating is essential for the 33.7°F winter average, while moderate snow gear covers the seasonal 24.3-inch accumulation.
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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.