62280 Rockwood, IL has a typical humid continental climate with four distinct seasons. Summers are hot and humid, with temperatures reaching well into the 80s and 90s during July and August. Winters can be quite cold with temperatures dropping into the 20s or even 10s in January and February. Spring is usually mild but occasionally experiences rain showers and thunderstorms. Fall is a generally pleasant season with cool temperatures and colorful foliage. The area receives an average of 43 inches of precipitation per year, mostly in the form of snowfall in the winter months.
Rockwood (zip 62280), Illinois gets 44 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Rockwood (zip 62280) averages 9 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 215 sunny days per year in Rockwood (zip 62280). The US average is 205 sunny days.
Rockwood (zip 62280) gets some kind of precipitation, on average, 88 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 22
Rain: averages 44 inches of rain a year
Snow: averages 9 inches of snow a year