Average annual temperature is 9.9 °C
Absolute maximum temperature: 31.9 °C
Absolute minimum temperature: -17.8 °C
Number of sunny days: 139 days
Number of rainy days: 194 days
Number of snow days: 32 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) | 12.7 | 16.8 | 14.9 | 28.2 | 29.4 | 31.3 | 31.9 | 28.5 | 31.3 | 26.7 | 16.2 | 10.7 |
| Average daytime temperature (°C) | 4.1 | 7.1 | 6.3 | 16.6 | 20.0 | 23.4 | 27.7 | 24.4 | 22.1 | 15.9 | 8.1 | 5.9 |
| Average temperature (°C) | 0.9 | 0.4 | 1.2 | 9.6 | 13.0 | 17.7 | 21.7 | 19.3 | 16.7 | 11.5 | 3.4 | 2.6 |
| Average night temperature (°C) | -1.6 | -4.3 | -2.8 | 4.0 | 6.6 | 12.5 | 16.5 | 15.1 | 12.5 | 7.9 | -0.1 | 0.1 |
| Absolute minimum temperature (°C) | -7.6 | -17.8 | -10.8 | -5.6 | -0.7 | 7.0 | 12.6 | 9.9 | 5.9 | -1.4 | -6.9 | -6.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 13.0 | 14.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.5 | 10.6 | 11.9 | 13.4 | 14.6 | 15.2 | 14.9 | 13.8 | 12.5 | 11.1 | 9.8 | 9.2 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 2.8 | 6.2 | 6.1 | 8.7 | 11.7 | 10.8 | 11.7 | 10.0 | 8.6 | 6.2 | 6.4 | 3.0 |
| Precipitation (mm) | 88 | 51 | 74 | 81 | 38 | 93 | 114 | 117 | 42 | 65 | 44 | 113 |
| Sunny days | 8 | 11 | 7 | 12 | 21 | 12 | 6 | 5 | 16 | 15 | 15 | 11 |
| Rainy days | 15 | 14 | 13 | 17 | 10 | 18 | 25 | 26 | 14 | 16 | 12 | 14 |
| Snow days | 8 | 3 | 11 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 6 |
The best time to visit Knoxville during the most sunny months:
The largest precipitation sum in Knoxville is at