Gilson, IL has a humid continental climate with four distinct seasons. Summers are typically warm and humid, with occasional thunderstorms and temperatures reaching up to the high 80s. Winters are cold and snowy, with temperatures dropping as low as -10 degrees Fahrenheit. Spring is generally mild, while autumn brings cool evenings and colorful foliage. Precipitation is spread throughout the year, with an average of thirty-six inches of rain annually. Snowfall averages around twenty-four inches per year, usually coming in December or January. Overall, Gilson's climate provides plenty of opportunities for outdoor recreation throughout the year.
Gilson, Illinois gets 39 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Gilson averages 24 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 Gilson. The US average is 205 sunny days.
Gilson gets some kind of precipitation, on average, 107 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 14
Rain: averages 39 inches of rain a year
Snow: averages 24 inches of snow a year