Average Monthly Sunshine hours in Janesville (WI)

This graph shows the average number of hours per month that Janesville receives direct sunlight. The numbers are calculated over a 30-year period to provide a reliable average.

• On average, July is the sunniest month with 308 hours of sunshine.
• December has on average the lowest amount of sunshine with 107 hours.
• On average, the total annual amount of sun is 2439 hours.

Forecast: is it sunny in Janesville (WI)?

Fri   Nov 22

7°C | 2°C

N 22 km/h

overcast and no rain

hourly forecast

Sat   Nov 23

6°C | 0°C

W 11 km/h

broken clouds and no rain

hourly forecast

Sun   Nov 24

10°C | 0°C

S 14 km/h

broken clouds and no rain

hourly forecast

5-Day Forecast 10-Day Forecast