Grafton (WI) Precipitation: Average Monthly Rainfall and Snowfall
This graph shows the average amount of rainfall per month in Grafton (Wisconsin). The numbers are calculated over a 30-year period to provide a reliable average.
- 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.
Current rainfall in Grafton (WI)
overcast and chance of rain
broken clouds and slight rain
broken clouds and no rain