Wilmington, IL (62078) has a humid continental climate with warm summers and cold winters. The average temperatures in July range from 74°F to 84°F, while the average temperatures in January range from 17°F to 28°F. The area receives approximately 35 inches of precipitation annually and experiences an average of about 40 days of snowfall in the winter months. Humidity is generally high throughout the year, especially during the summer season. Winters are mostly cold and snowy, while summers tend to be hot and humid with occasional thunderstorms or showers.
Wilmington (zip 62078), Illinois gets 40 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Wilmington (zip 62078) averages 17 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 201 sunny days per year in Wilmington (zip 62078). The US average is 205 sunny days.
Wilmington (zip 62078) gets some kind of precipitation, on average, 104 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 86 degrees
Winter Low: the January low is 18
Rain: averages 40 inches of rain a year
Snow: averages 17 inches of snow a year