The climate in 62458 St. Elmo, IL is generally mild with hot summers and cold winters. Average high temperatures in the summer range from 85 to 90 degrees Fahrenheit, while average low temperatures stay between the mid-50s and low 60s. Winters are cold with temperatures usually staying in the 30s and 40s range for highs. Rainfall is fairly evenly spread throughout the year with slightly higher amounts in May and June compared to other months. Snow can also be seen at times during winter months, but accumulations are usually light and short lived.
St. Elmo (zip 62458), Illinois gets 42 inches of rain, on average, per year. The US average is 38 inches of rain per year.
St. Elmo (zip 62458) averages 14 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 198 sunny days per year in St. Elmo (zip 62458). The US average is 205 sunny days.
St. Elmo (zip 62458) gets some kind of precipitation, on average, 107 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 21
Rain: averages 42 inches of rain a year
Snow: averages 14 inches of snow a year