Arlington Heights, IL has a humid continental climate with hot, humid summers and cold winters. Average temperatures range from the mid-20s in the winter to the 80s in the summer. Precipitation is evenly distributed throughout the year, but snowfall does vary from season to season. The city gets an average of about 30 inches of snow annually. Rainfall usually ranges between 16 and 20 inches per year. Humidity levels tend to be higher during summer months, often reaching as high as 70%. Overall, Arlington Heights has a pleasant climate with all four seasons experienced each year.
Arlington Heights, Illinois gets 36 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Arlington Heights averages 36 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 185 sunny days per year in Arlington Heights. The US average is 205 sunny days.
Arlington Heights gets some kind of precipitation, on average, 125 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 17
Rain: averages 36 inches of rain a year
Snow: averages 36 inches of snow a year