Merrionette Park, IL has a humid continental climate with hot summers and cold winters. The area receives an average of 36 inches of rain per year and averages around 30 inches of snowfall annually. During the summer months the temperature can reach into the high 90s with heat indexes pushing into the triple digits. In the winter months temperatures can dip below freezing for extended periods of time. Despite this, Merrionette Park is a wonderful place to experience all four seasons and is very mild in temperature when compared to other parts of Illinois.
Merrionette Park, Illinois gets 39 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Merrionette Park averages 32 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 191 sunny days per year in Merrionette Park. The US average is 205 sunny days.
Merrionette Park gets some kind of precipitation, on average, 124 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 20
Rain: averages 39 inches of rain a year
Snow: averages 32 inches of snow a year