Prospect Heights, IL has a humid continental climate with very cold winters and hot summers. On average the temperature ranges from lows of 16°F in January to a high of 84°F in July. Precipitation is fairly evenly distributed throughout the year, with an average of about 37 inches annually. Snowfall averages around 25 inches per year, making Prospect Heights a great place for snow sports enthusiasts.
Prospect Heights (zip 60070), Illinois gets 36 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Prospect Heights (zip 60070) averages 36 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 Prospect Heights (zip 60070). The US average is 205 sunny days.
Prospect Heights (zip 60070) 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 83 degrees
Winter Low: the January low is 17
Rain: averages 36 inches of rain a year
Snow: averages 36 inches of snow a year