Average annual temperature is 13.3 °C
Absolute maximum temperature: 34.3 °C
Absolute minimum temperature: -8.9 °C
Number of sunny days: 166 days
Number of rainy days: 193 days
Number of snow days: 6 days
Look at detailed online map of Knox
* Weather data for Knox 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) | 16.6 | 23.5 | 24.6 | 28.9 | 30.1 | 33.3 | 34.3 | 33.7 | 34.3 | 29.1 | 22.5 | 17.5 |
| Average daytime temperature (°C) | 8.6 | 13.0 | 12.8 | 19.6 | 23.1 | 26.9 | 30.1 | 28.7 | 26.6 | 20.0 | 13.2 | 9.9 |
| Average temperature (°C) | 4.0 | 5.8 | 6.2 | 12.6 | 16.5 | 20.7 | 24.1 | 22.8 | 20.3 | 14.3 | 7.1 | 5.1 |
| Average night temperature (°C) | 0.7 | 0.9 | 1.3 | 6.7 | 10.8 | 15.2 | 19.3 | 17.8 | 15.1 | 9.9 | 2.7 | 1.7 |
| Absolute minimum temperature (°C) | -6.5 | -8.9 | -7.5 | -0.5 | 3.3 | 10.0 | 15.8 | 12.7 | 10.1 | 2.5 | -6.9 | -5.2 |
| 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 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.8 | 10.7 | 12.0 | 13.2 | 14.3 | 14.9 | 14.6 | 13.7 | 12.4 | 11.2 | 10.0 | 9.5 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 3.8 | 7.1 | 7.5 | 9.2 | 10.0 | 11.0 | 11.8 | 10.8 | 9.4 | 7.6 | 7.2 | 5.1 |
| Precipitation (mm) | 126 | 51 | 100 | 73 | 76 | 66 | 88 | 76 | 53 | 54 | 38 | 81 |
| Sunny days | 9 | 14 | 16 | 13 | 18 | 12 | 5 | 15 | 16 | 15 | 20 | 13 |
| Rainy days | 21 | 13 | 13 | 17 | 13 | 18 | 26 | 16 | 14 | 16 | 9 | 17 |
| Snow days | 1 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
The best time to visit Knox during the most sunny months:
The largest precipitation sum in Knox is at