Lake County, Illinois gets 36 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Lake County averages 39 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 Lake County. The US average is 205 sunny days.
Lake County gets some kind of precipitation, on average, 120 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 82 degrees
Winter Low: the January low is 15
Rain: averages 36 inches of rain a year
Snow: averages 39 inches of snow a year
BESTPLACES COMFORT INDEX
The annual BestPlaces Comfort Index for Lake County is 6.8 (10=best), which means it is less comfortable than most places in Illinois.
9.1 / 4.4
Summer / Winter
June, August and September are the most pleasant months in Lake County, while January and December are the least comfortable months.