DeKalb, IL has a humid continental climate with hot summers and cold winters. During the summer months, temperatures can reach up to the mid 90s with high humidity. Winters in DeKalb are generally cold and snowy, with temperatures dropping into the teens and twenties. The average yearly snowfall is approximately 45 inches, making it a great place for winter activities such as skiing. Precipitation is evenly distributed throughout the year, averaging around 41 inches annually.
DeKalb, Illinois gets 37 inches of rain, on average, per year. The US average is 38 inches of rain per year.
DeKalb averages 29 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 195 sunny days per year in DeKalb. The US average is 205 sunny days.
DeKalb 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.
Weather Highlights
Summer High: the July high is around 83 degrees
Winter Low: the January low is 12
Rain: averages 37 inches of rain a year
Snow: averages 29 inches of snow a year