Average annual temperature is 18.6 °C
Absolute maximum temperature: 38.4 °C
Absolute minimum temperature: -2.9 °C
Number of sunny days: 178 days
Number of rainy days: 187 days
Look at detailed online map of Knoxville
* Weather data for Knoxville United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 22.1 | 27.1 | 28.7 | 30.0 | 32.7 | 35.9 | 37.0 | 38.4 | 34.5 | 30.0 | 26.1 | 22.8 |
| Average daytime temperature (°C) | 16.4 | 19.6 | 21.4 | 25.1 | 27.3 | 30.8 | 34.3 | 34.4 | 30.0 | 24.5 | 18.8 | 15.0 |
| Average temperature (°C) | 10.6 | 14.0 | 15.0 | 18.3 | 21.1 | 24.6 | 27.6 | 27.7 | 23.7 | 18.3 | 12.8 | 9.8 |
| Average night temperature (°C) | 6.2 | 9.8 | 9.5 | 12.6 | 16.0 | 19.4 | 22.4 | 22.6 | 18.4 | 13.1 | 8.2 | 5.5 |
| Absolute minimum temperature (°C) | -2.9 | -1.5 | -2.6 | 7.3 | 8.1 | 16.5 | 19.9 | 18.9 | 14.0 | 7.4 | -1.1 | -2.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.3 | 11.0 | 12.0 | 13.0 | 13.8 | 14.3 | 14.1 | 13.3 | 12.4 | 11.4 | 10.5 | 10.0 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 6.0 | 7.2 | 8.2 | 9.2 | 10.7 | 10.7 | 11.4 | 11.3 | 10.2 | 9.0 | 7.0 | 6.5 |
| Precipitation (mm) | 182 | 77 | 117 | 155 | 30 | 174 | 95 | 91 | 34 | 83 | 52 | 113 |
| Sunny days | 14 | 12 | 17 | 13 | 11 | 10 | 9 | 10 | 18 | 24 | 19 | 21 |
| Rainy days | 17 | 16 | 14 | 17 | 20 | 20 | 22 | 21 | 12 | 7 | 11 | 10 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Knoxville during the most sunny months:
The largest precipitation sum in Knoxville is at