Littleton, IL has a humid continental climate with warm summers and cold winters. Average summer temperatures range from the mid-70s to the mid-80s with high humidity. Winters are cold, often reaching below freezing temperatures for several days at a time. Fall and spring are mild, with average temperatures ranging from the mid-50s to the low-60s. Littleton typically sees plentiful precipitation throughout the year, with around 40 inches of rain per year and roughly 50 inches of snowfall annually.
Littleton (zip 61452), Illinois gets 39 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Littleton (zip 61452) averages 16 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 195 sunny days per year in Littleton (zip 61452). The US average is 205 sunny days.
Littleton (zip 61452) gets some kind of precipitation, on average, 91 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 87 degrees
Winter Low: the January low is 16
Rain: averages 39 inches of rain a year
Snow: averages 16 inches of snow a year