Joliet, IL has a humid continental climate characterized by highly seasonal temperature variations. Summers are hot and humid, with temperatures in the mid-80s Fahrenheit, while winters are cold and dry with average lows in the teens. Spring and fall are mild with occasional rainfall and generally comfortable temperatures. Winters can bring bouts of extreme cold weather with heavy snowfall, so it is important to be prepared for such events. Overall, Joliet has four distinct seasons with plenty of opportunities for outdoor activities throughout the year.
Joliet (zip 60435), Illinois gets 39 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Joliet (zip 60435) averages 28 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 Joliet (zip 60435). The US average is 205 sunny days.
Joliet (zip 60435) gets some kind of precipitation, on average, 125 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 39 inches of rain a year
Snow: averages 28 inches of snow a year