Thomson, IL has a humid continental climate, characterized by hot, humid summers and cold winters. Winters can be especially cold with temperatures dropping to 0°F or lower on many occasions. It experiences four distinct seasons, with spring and fall being the most pleasant times of the year. Summers tend to be hot and humid while winters are cold and snowy. Precipitation is fairly evenly distributed throughout the year, but summer months tend to have more rain than other times of the year. The area receives plenty of sunshine throughout the year which helps moderate temperatures during all four seasons.
Thomson, Illinois gets 37 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Thomson averages 30 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 193 sunny days per year in Thomson. The US average is 205 sunny days.
Thomson gets some kind of precipitation, on average, 103 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 85 degrees
Winter Low: the January low is 12
Rain: averages 37 inches of rain a year
Snow: averages 30 inches of snow a year