Lebanon, IL experiences four distinct seasons. In the winter months temperatures hover around freezing and occasional snowfalls occur. The spring brings mild temperatures and rain, leading to an abundance of colorful wildflowers and blossoming trees. Summers in Lebanon are hot and humid, with temperatures often reaching into the upper 80s and 90s Fahrenheit (30s Celsius). Annual rainfall is moderate during these months as well. Fall brings cooler temperatures and a beautiful array of colors as leaves change from green to gold, red, and orange. This makes for a great time of year for outdoor activities such as hiking or camping.
Lebanon, Illinois gets 42 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Lebanon averages 11 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 203 sunny days per year in Lebanon. The US average is 205 sunny days.
Lebanon gets some kind of precipitation, on average, 91 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 89 degrees
Winter Low: the January low is 22
Rain: averages 42 inches of rain a year
Snow: averages 11 inches of snow a year