The climate in 62675 Petersburg, IL is generally mild year round. The summers are hot and humid with temperatures reaching up to 85 degrees Fahrenheit on average. Winters are cold and snowy with temperatures averaging around 20 degrees Fahrenheit. Spring is pleasant with temperatures ranging from the low 40's to mid 50's while autumn brings cooler weather and bright colors of changing leaves. Rainfall is common throughout the year, however it typically increases from spring through autumn.
Petersburg (zip 62675), Illinois gets 38 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Petersburg (zip 62675) averages 17 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 Petersburg (zip 62675). The US average is 205 sunny days.
Petersburg (zip 62675) gets some kind of precipitation, on average, 102 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 85 degrees
Winter Low: the January low is 18
Rain: averages 38 inches of rain a year
Snow: averages 17 inches of snow a year