Belleville, IL has a humid continental climate, characterized by hot and humid summers, cold winters, and moderate weather in the spring and fall. On average, the city receives about 42 inches of rainfall each year with snowfall averaging about 19 inches. Temperatures in the summer months are usually around 85°F with high humidity levels while winter temperatures generally range between 30°F and 40°F. Belleville experiences all four seasons throughout the year, making it an ideal destination for travelers looking to enjoy a variety of activities year round.
Belleville, Illinois gets 42 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Belleville averages 13 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 203 sunny days per year in Belleville. The US average is 205 sunny days.
Belleville gets some kind of precipitation, on average, 101 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Weather Highlights
Summer High: the July high is around 89 degrees
Winter Low: the January low is 22
Rain: averages 42 inches of rain a year
Snow: averages 13 inches of snow a year