Average monthly snow and rainfall in Grafton (WI)
The mean monthly precipitation over the year in Grafton (Wisconsin), including rain, snow, hail.
- Most rainfall (rainy season) is seen in April and June.
- On average, April is the wettest month with 128 mm of precipitation.
- On average, January is the driest month with 38 mm of precipitation.
- The average amount of annual precipitation is 964 mm.
Forecast for Grafton (WI)
almost clear and no rain
overcast and thunder
partly cloudy and no rain