Oak Lawn, Illinois gets 39 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Oak Lawn averages 32 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 Oak Lawn. The US average is 205 sunny days.
Oak Lawn 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.
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
BESTPLACES COMFORT INDEX
The annual BestPlaces Comfort Index for Oak Lawn is 7.0 (10=best), which means it is about average compared to other places in Illinois.
7 / 10
September, June and August are the most pleasant months in Oak Lawn, while January and December are the least comfortable months.