Carthage, IL has a humid continental climate. The summers are hot and humid with temperatures reaching into the upper 80s and 90s Fahrenheit. Winters are cold with temperatures commonly dropping into the lower 20s and 30s Fahrenheit. Precipitation is abundant in Carthage as average annual rainfall totals up to 36 inches per year. The area sees about 88 days of snowfall each year, which makes it one of the snowiest towns in Illinois.
Carthage, Illinois gets 40 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Carthage averages 20 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 199 sunny days per year in Carthage. The US average is 205 sunny days.
Carthage gets some kind of precipitation, on average, 96 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