Average annual temperature is 19.0 °C
Absolute maximum temperature: 38.9 °C
Absolute minimum temperature: -3.5 °C
Number of sunny days: 179 days
Number of rainy days: 186 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) | 23.4 | 27.3 | 28.1 | 30.2 | 34.1 | 37.1 | 37.5 | 38.9 | 34.1 | 31.5 | 27.0 | 23.5 |
| Average daytime temperature (°C) | 16.6 | 19.8 | 21.1 | 23.6 | 28.4 | 32.6 | 33.9 | 34.8 | 31.5 | 25.5 | 19.1 | 15.9 |
| Average temperature (°C) | 11.3 | 13.5 | 15.0 | 17.5 | 21.8 | 25.8 | 27.5 | 28.3 | 24.9 | 19.4 | 13.1 | 9.9 |
| Average night temperature (°C) | 7.4 | 9.2 | 9.9 | 12.4 | 16.6 | 20.4 | 22.8 | 23.3 | 19.7 | 14.4 | 8.6 | 5.4 |
| Absolute minimum temperature (°C) | -1.5 | -1.4 | -3.5 | 7.3 | 9.0 | 18.6 | 19.7 | 19.4 | 15.1 | 6.8 | -0.7 | -0.6 |
| 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 | 13.9 | 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) | 6.2 | 7.5 | 8.7 | 9.3 | 10.8 | 11.7 | 11.1 | 10.9 | 10.9 | 8.8 | 6.8 | 7.6 |
| Precipitation (mm) | 167 | 167 | 110 | 99 | 100 | 77 | 112 | 108 | 37 | 16 | 74 | 67 |
| Sunny days | 12 | 11 | 17 | 11 | 9 | 10 | 11 | 15 | 17 | 25 | 20 | 21 |
| Rainy days | 19 | 17 | 14 | 19 | 22 | 20 | 20 | 16 | 13 | 6 | 10 | 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