Jonesboro, IL has a humid continental climate with warm summers and cold winters. The average temperature in the summer is around 75°F (24°C) while the winter temperature averages at 28°F (-2°C). July is usually the hottest month with an average high of 84°F (29°C), while January is usually the coldest month with an average low of 15°F (-9°C). Precipitation is spread evenly throughout the year, making Jonesboro quite wet compared to other parts of Illinois. Snowfall occurs in December and January, but not as frequently as other nearby cities.
Jonesboro (zip 62952), Illinois gets 49 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Jonesboro (zip 62952) averages 10 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 216 sunny days per year in Jonesboro (zip 62952). The US average is 205 sunny days.
Jonesboro (zip 62952) gets some kind of precipitation, on average, 104 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 49 inches of rain a year
Snow: averages 10 inches of snow a year