Best year time to visit Janesville

General weather information about Janesville

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

Janesville air temperature forecast for each month

Jan Feb Mar Apr May 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

Janesville monthly weather indicators

Jan Feb Mar Apr May 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

Janesville - weather forecast by months

January February March April May June July August September October November December

Best time to visit Janesville:

The best time to visit Janesville during the most sunny months:

  • June — 12.2(h)
  • July — 12.5(h)

The largest precipitation sum in Janesville is at

  • January — 95(mm)
  • March — 146(mm)
  • July — 114(mm)

Weather forecast in the closest to Janesville admin centers