Swain County Climate
Swain County, North Carolina
Avg Annual Temp
55.2°F
Annual Precip
56.7"
Annual Snowfall
6.5"
Extreme Heat Days
12.1
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Swain County Weather
Cool and Rainy Mountain Climate
Swain County's 55.2°F average temperature reflects its high-elevation mountain environment. It is much cooler than the rest of the state and receives high annual rainfall.
North Carolina's Cooler Peak
Swain is over 4 degrees cooler than the North Carolina state average of 59.3°F. It is also much wetter, receiving 56.7 inches of precipitation compared to the state's 51.5 inches.
A Rainy Regional Outlier
With 56.7 inches of rain, Swain is one of the wettest counties in the region. It records only 12 extreme heat days, which is vastly lower than any of its eastern neighbors.
Mild Summers and Snowy Winters
Extreme heat is rare here with only 12 days above 90°F and a summer average of 71.3°F. Winters are snowy, averaging 6.5 inches with a January mean of 36.4°F.
Focus on Rain and Snow
Reliable waterproof gear and winter vehicle prep are essential for the high precipitation and 6.5 inches of snow. Heavy cooling is rarely needed as extreme heat is infrequent.
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.