Macomb, IL has a humid continental climate. Winters are cold with moderate snowfall and temperatures usually remaining around freezing. Summers tend to be warm and humid, with frequent thunderstorms. Spring and fall are generally mild but can see some extreme weather at times, such as the occasional ice storm in winter or severe thunderstorm in summer. Overall, Macomb experiences four distinct seasons that bring its own set of weather conditions and challenges.
Macomb, Illinois gets 39 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Macomb averages 19 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 200 sunny days per year in Macomb. The US average is 205 sunny days.
Macomb gets some kind of precipitation, on average, 97 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 86 degrees
Winter Low: the January low is 16
Rain: averages 39 inches of rain a year
Snow: averages 19 inches of snow a year