Climate change in Swain County, North Carolina
Since 1979, Swain County, North Carolina has warmed 2.3°F, with about the same number of days above 90°F, about the same number of nights above 70°F and 2% more precipitation a year. Its climate in 1996–2025 is most like Macon County, NC's was in 1951–1980.
- Average temperature: +2.3°F
- Summer highs (Jun–Aug): +0.7°F
- Winter lows (Dec–Feb): +4.3°F
- Precipitation: +2%
- Wettest day of the year: +4%
- Longest dry spell: −4 days
- Days above 90°F: +0 days
- Nights above 70°F: +0 days
- Freezing nights: −20 days
- Frost-free season: +20 days
- Muggy days: +11 days
- Summer heat index (Jun–Aug): +1.1°F
- Extreme fire-weather days: +7 days
- Snowfall: −52%
- Snowy days (1 inch or more): −1 days
Changes follow the trend line through every year from 1979 to 2025. Data: NOAA nClimGrid-Daily; humidity from gridMET, adjusted to airport observations.