Climate change in Grainger County, Tennessee
Since 1979, Grainger County, Tennessee has warmed 2.5°F, with 4 more days above 90°F, 6 more nights above 70°F and 15% more precipitation a year. Its climate in 1996–2025 is most like Knox County, TN's was in 1951–1980.
- Average temperature: +2.5°F
- Summer highs (Jun–Aug): +0.6°F
- Winter lows (Dec–Feb): +4.4°F
- Precipitation: +15%
- Wettest day of the year: +31%
- Longest dry spell: +1 days
- Days above 90°F: +4 days
- Nights above 70°F: +6 days
- Freezing nights: −22 days
- Frost-free season: +15 days
- Muggy days: +11 days
- Summer heat index (Jun–Aug): +0.9°F
- Extreme fire-weather days: +11 days
- Snowfall: −77%
- Snowy days (1 inch or more): −2 days
Changes follow the trend line through every year from 1979 to 2025. Data: NOAA nClimGrid-Daily; humidity from gridMET, adjusted to airport observations.