Mokena, Illinois gets 40 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Mokena averages 30 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 187 sunny days per year in Mokena. The US average is 205 sunny days.
Mokena gets some kind of precipitation, on average, 123 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.
Summer High: the July high is around 84 degrees
Winter Low: the January low is 16
Rain: averages 40 inches of rain a year
Snow: averages 30 inches of snow a year
BESTPLACES COMFORT INDEX
The annual BestPlaces Comfort Index for Mokena is 6.9 (10=best), which means it is less comfortable than most places in Illinois.
6.9 / 10
June, September and August are the most pleasant months in Mokena, while January and December are the least comfortable months.