Gilman, IL has a humid continental climate which is characterized by hot, humid summers and cold, dry winters. The average summer temperature in Gilman is 78°F (25.6°C) with high humidity and occasional thunderstorms. Winter temperatures typically range from the upper 20s to the lower 40s Fahrenheit (around -2 to 5°C). Precipitation levels are moderate throughout the year, with occasional snowfall during the winter months. The area is also prone to extreme weather events such as flooding due to heavy rains or snow storms during the winter season.
Gilman, Illinois gets 39 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Gilman averages 22 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 192 sunny days per year in Gilman. The US average is 205 sunny days.
Gilman gets some kind of precipitation, on average, 115 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 16
Rain: averages 39 inches of rain a year
Snow: averages 22 inches of snow a year