Climate change in Knox County, Tennessee
Since 1979, Knox County, Tennessee has warmed 2.6°F, with 8 more days above 90°F, 12 more nights above 70°F and 19% more precipitation a year. Its climate in 1996–2025 is most like Cobb County, GA's was in 1951–1980.
- Average temperature: +2.6°F
- Summer highs (Jun–Aug): +0.7°F
- Winter lows (Dec–Feb): +4.2°F
- Precipitation: +19%
- Wettest day of the year: +36%
- Longest dry spell: +1 days
- Days above 90°F: +8 days
- Nights above 70°F: +12 days
- Freezing nights: −20 days
- Frost-free season: +27 days
- Muggy days: +8 days
- Summer heat index (Jun–Aug): +0.7°F
- Extreme fire-weather days: +13 days
- Snowfall: −51%
- Snowy days (1 inch or more): −0 days
Changes follow the trend line through every year from 1979 to 2025. Data: NOAA nClimGrid-Daily; humidity from gridMET, adjusted to airport observations.