Wilmington, IL has a humid continental climate. The warmest month is typically July, which averages temperatures of around 82°F (28°C), while the coldest month is January, averaging temperatures around 22°F (-6°C). Rainfall throughout the year varies from about 30 inches (761 mm) in the summer to around 21 inches (533 mm) in the winter. Snowfall is common throughout the winter months and generally averages 25 inches (635 mm).
Wilmington (zip 60481), Illinois gets 37 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Wilmington (zip 60481) averages 24 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 189 sunny days per year in Wilmington (zip 60481). The US average is 205 sunny days.
Wilmington (zip 60481) gets some kind of precipitation, on average, 123 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 84 degrees
Winter Low: the January low is 16
Rain: averages 37 inches of rain a year
Snow: averages 24 inches of snow a year