Average Monthly Sunshine hours in Grafton (WI)
This graph shows the average number of hours per month that Grafton 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 330 hours of sunshine.
- January has on average the lowest amount of sunshine with 120 hours.
Forecast: is it sunny in Grafton (WI)?
overcast and chance of rain
broken clouds and slight rain
broken clouds and no rain