McHenry County, Illinois gets 37 inches of rain, on average, per year. The US average is 38 inches of rain per year.
McHenry County averages 35 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 190 sunny days per year in McHenry County. The US average is 205 sunny days.
McHenry County gets some kind of precipitation, on average, 116 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 83 degrees
Winter Low: the January low is 13
Rain: averages 37 inches of rain a year
Snow: averages 35 inches of snow a year
BESTPLACES COMFORT INDEX
The annual BestPlaces Comfort Index for McHenry County is 6.8 (10=best), which means it is less comfortable than most places in Illinois.
6.8 / 10
June, September and August are the most pleasant months in McHenry County, while January and December are the least comfortable months.