Average annual temperature is 9.2 °C
Absolute maximum temperature: 35.0 °C
Absolute minimum temperature: -26.7 °C
Number of sunny days: 200 days
Number of rainy days: 135 days
Number of snow days: 30 days
Look at detailed online map of Township of Janesville
* Weather data for Township of Janesville 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) | 2.7 | 4.4 | 9.4 | 27.1 | 31.1 | 31.1 | 33.2 | 35.0 | 34.3 | 29.9 | 18.4 | 11.5 |
| Average daytime temperature (°C) | -3.8 | -1.9 | 2.0 | 12.6 | 23.0 | 28.1 | 27.7 | 27.7 | 25.2 | 15.3 | 8.4 | 4.8 |
| Average temperature (°C) | -7.3 | -7.1 | -2.9 | 6.8 | 16.9 | 22.6 | 22.3 | 22.6 | 19.9 | 11.0 | 3.4 | 0.6 |
| Average night temperature (°C) | -10.2 | -11.5 | -7.1 | 2.3 | 11.3 | 17.4 | 17.3 | 18.4 | 15.7 | 7.4 | -0.3 | -2.3 |
| Absolute minimum temperature (°C) | -24.9 | -26.7 | -16.1 | -7.3 | 2.3 | 11.2 | 12.7 | 12.3 | 8.8 | -4.8 | -13.0 | -8.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.3 | 10.5 | 11.9 | 13.5 | 14.8 | 15.4 | 15.1 | 14.0 | 12.5 | 11.0 | 9.6 | 8.9 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 8.0 |
| Sunshine mean duration (h) | 4.0 | 6.9 | 6.7 | 8.0 | 11.3 | 12.9 | 12.5 | 11.5 | 9.7 | 7.4 | 6.3 | 5.0 |
| Precipitation (mm) | 61 | 71 | 80 | 113 | 84 | 56 | 66 | 75 | 122 | 116 | 10 | 54 |
| Sunny days | 20 | 18 | 17 | 11 | 18 | 13 | 14 | 18 | 14 | 13 | 23 | 21 |
| Rainy days | 4 | 6 | 6 | 16 | 13 | 17 | 17 | 13 | 16 | 15 | 5 | 7 |
| Snow days | 7 | 4 | 8 | 3 | 0 | 0 | 0 | 0 | 0 | 3 | 2 | 3 |
The best time to visit Township of Janesville during the most sunny months:
Months with the longest average daylight duration in Township of Janesville:
The largest precipitation sum in Township of Janesville is at