Mound City, IL experiences a humid subtropical climate with four distinct seasons. Summers in the area are hot and humid, while winters are cold and wet with occasional snowfall. The average temperature in the summertime is around 82°F (28°C) while the winter months hover around 34°F (1°C). On average, Mound City receives around 40 inches of rain annually, making it one of the wettest cities in Illinois. Snowfall is also common in the winter months, with an average of 17 inches falling annually.
Mound City, Illinois gets 49 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Mound City averages 7 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 212 sunny days per year in Mound City. The US average is 205 sunny days.
Mound City gets some kind of precipitation, on average, 105 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 26
Rain: averages 49 inches of rain a year
Snow: averages 7 inches of snow a year