Crystal Lake, IL has a humid continental climate with warm and humid summers and cold but not overly severe winters. The average temperature in the summer months is about 74°F with highs around 85°F. Winters have an average temperature of 24°F with lows around 10°F and occasional snowfall. Spring brings moderate temperatures while fall brings cooler temperatures and a higher chance of precipitation.
Crystal Lake (zip 60014), Illinois gets 37 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Crystal Lake (zip 60014) averages 35 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 Crystal Lake (zip 60014). The US average is 205 sunny days.
Crystal Lake (zip 60014) gets some kind of precipitation, on average, 114 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 82 degrees
Winter Low: the January low is 13
Rain: averages 37 inches of rain a year
Snow: averages 35 inches of snow a year