Old Shawneetown, IL has a humid continental climate with four distinct seasons. Summers are hot and humid with temperatures typically ranging from the upper 70s to mid-90s. Winters are generally cold and wet with temperatures averaging in the 20s and 30s. The average annual rainfall is around 40 inches, making it one of the wettest parts of Illinois. Spring and fall tend to be mild, although thunderstorms can occur throughout the area as well as occasional tornadoes during peak season. Snowfall averages around 15 inches per year.
Old Shawneetown, Illinois gets 46 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Old Shawneetown averages 9 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 204 sunny days per year in Old Shawneetown. The US average is 205 sunny days.
Old Shawneetown gets some kind of precipitation, on average, 108 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 24
Rain: averages 46 inches of rain a year
Snow: averages 9 inches of snow a year