Tolono, IL has a humid continental climate with hot, humid summers and cold winters. The area experiences four distinct seasons, with temperatures ranging from the low teens to the upper 90s during the year. The warmest month of the year is July when temperatures can reach up to an average high of 86°F (30°C), while January is usually the coldest month with an average low temperature of 16°F (-9°C). Precipitation is fairly evenly distributed throughout the year, usually ranging from 25 to 45 inches of rain or snow annually.
Tolono, Illinois gets 41 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Tolono averages 20 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 196 sunny days per year in Tolono. The US average is 205 sunny days.
Tolono gets some kind of precipitation, on average, 112 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 41 inches of rain a year
Snow: averages 20 inches of snow a year