The climate in Leland, IL is typically mild with warm summers and cold winters. The average high temperature in the summer months of June, July, and August is typically around 80-85°F while the winter months of December, January, and February usually have an average high of around 35-40°F. Annual snowfall ranges from about 10-25 inches depending on the year. The area also experiences mild to moderate precipitation throughout the year, with the driest months being April and September.
Leland, Illinois gets 37 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Leland averages 27 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 190 sunny days per year in Leland. The US average is 205 sunny days.
Leland 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 82 degrees
Winter Low: the January low is 12
Rain: averages 37 inches of rain a year
Snow: averages 27 inches of snow a year