Effingham, IL has a typical Midwestern climate with hot and humid summers and cold winters. Temperatures in the summer months can reach into the low 90s (Fahrenheit) during the day, with occasional heat waves bringing high temperatures above 100 degrees. Winters usually bring cold temperatures down to near zero during the night, as well as a few inches of snowfall throughout the winter season. Spring and fall tend to be milder but can be quite unpredictable at times.
Effingham, Illinois gets 42 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Effingham averages 16 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 196 sunny days per year in Effingham. The US average is 205 sunny days.
Effingham 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 87 degrees
Winter Low: the January low is 20
Rain: averages 42 inches of rain a year
Snow: averages 16 inches of snow a year