Algonquin, IL has a relatively mild climate. It experiences all four seasons, though winters tend to be cold and snowy while summers are hot and humid. Average temperatures range from the high teens in the winter to the low 80s in the summer months. The area receives an average of around 35 inches of precipitation annually, as well as about 26 inches of snow each year. The area also experiences some extreme weather, including hot and cold spells, thunderstorms with strong winds and hail, and occasional tornadoes or floods.
Algonquin, Illinois gets 38 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Algonquin averages 33 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 186 sunny days per year in Algonquin. The US average is 205 sunny days.
Algonquin gets some kind of precipitation, on average, 121 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 84 degrees
Winter Low: the January low is 12
Rain: averages 38 inches of rain a year
Snow: averages 33 inches of snow a year