Average monthly snow and rainfall in Collinsville (IL)
The mean monthly precipitation over the year in Collinsville (Illinois), including rain, snow, hail.
- A lot of rain (rainy season) falls in the months: April, May, June and July.
- On average, June is the wettest month with 138 mm of precipitation.
- On average, January is the driest month with 53 mm of precipitation.
- The average amount of annual precipitation is 1148 mm.
Forecast for Collinsville (IL)
partly cloudy and no rain
almost clear and no rain
partly cloudy and no rain