Average annual temperature is 13.5 °C
Absolute maximum temperature: 36.7 °C
Absolute minimum temperature: -12.3 °C
Number of sunny days: 199
Number of rainy days: 158
Number of snow days: 8
Average annual precipitation: 893 mm
Look at detailed online map of Janesville
* Weather data for Janesville United States is based on climate observations for 2023 year
| Jan | Feb | Mar | Apr | Maggio | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 18.6 | 19.2 | 21.2 | 27.4 | 31.9 | 34.2 | 35.7 | 36.7 | 31.9 | 29.4 | 24.9 | 16.1 |
| Average daytime temperature (°C) | 6.6 | 10.3 | 11.2 | 19.1 | 25.1 | 29.4 | 30.1 | 28.6 | 26.2 | 19.4 | 13.1 | 9.1 |
| Average temperature (°C) | 2.5 | 3.9 | 5.5 | 12.1 | 18.8 | 23.1 | 24.7 | 23.4 | 20.6 | 14.3 | 7.6 | 4.6 |
| Average night temperature (°C) | -0.7 | -0.5 | 1.1 | 6.4 | 12.7 | 17.3 | 19.7 | 19 | 15.6 | 10.1 | 2.9 | 1.6 |
| Absolute minimum temperature (°C) | -12.1 | -12.3 | -8 | -2.2 | 3.9 | 11.1 | 16.1 | 12.9 | 11.2 | -3 | -8.4 | -7.8 |
| Jan | Feb | Mar | Apr | Maggio | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.2 | 11.3 | 12.6 | 13.8 | 14.7 | 15 | 14.9 | 14.2 | 13.1 | 11.8 | 10.5 | 9.6 |
| Daylight mean duration (h) | 9.8 | 10.7 | 12 | 13.3 | 14.3 | 14.9 | 14.6 | 13.7 | 12.5 | 11.2 | 10 | 9.5 |
| Daylight minimum duration (h) | 9.5 | 10.2 | 11.3 | 12.7 | 13.9 | 14.8 | 14.3 | 13.1 | 11.8 | 10.6 | 9.6 | 9.4 |
| Sunshine mean duration (h) | 5.5 | 8.2 | 7.1 | 9.6 | 11.3 | 12.2 | 12.5 | 10.5 | 10.3 | 7.7 | 8.1 | 5.9 |
| Precipitation (mm) | 95 | 69 | 146 | 78 | 46 | 68 | 114 | 93 | 40 | 58 | 21 | 66 |
| Sunny days | 13 | 17 | 14 | 17 | 20 | 15 | 11 | 13 | 20 | 20 | 23 | 16 |
| Rainy days | 11 | 11 | 16 | 13 | 11 | 15 | 20 | 18 | 10 | 11 | 7 | 15 |
| Snow days | 7 | 1 |
The best time to visit Janesville during the most sunny months:
The largest precipitation sum in Janesville is at