Tennessee, IL is characterized by a humid continental climate with mild temperatures in the spring, hot and humid summers, cool and crisp autumns and cold winters. The region gets plenty of precipitation throughout the year, with rain showers most common in the warmer months. On average, Tennessee experiences around 40 inches of rainfall per year and around 60 inches of snow during winter months. Summer temperatures tend to be in the 80's Fahrenheit while winter temperatures can dip into single digits. Overall, Tennessee has a moderate climate that is suitable for a variety of activities all year round.
Tennessee, Illinois gets 40 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Tennessee averages 20 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 195 sunny days per year in Tennessee. The US average is 205 sunny days.
Tennessee gets some kind of precipitation, on average, 99 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 87 degrees
Winter Low: the January low is 16
Rain: averages 40 inches of rain a year
Snow: averages 20 inches of snow a year