National Weather Service United States Department of Commerce

The following links are to climate summaries for area cities. Only the summaries for Peoria, Springfield, and Lincoln are considered "official", meaning they are the station of record for their respective locations. The other summaries are "supplemental", meaning another location in the area is the official climate station for the city.

Climate data for other cities is available at https://www.weather.gov/climate/xmacis.php?wfo=ilx

 

Temperature, Precipitation and Snowfall Maps

Average temperature in 2016. Image courtesy of Midwestern Regional Climate Center. 2016 temperature departure from normal. Image courtesy of Midwestern Regional Climate Center.
Total precipitation 2016. Image courtesy of Midwestern Regional Climate Center. Precipitation departure from normal in 2016. Image courtesy of Midwestern Regional Climate Center.
Total snowfall in 2016. Image courtesy of Midwestern Regional Climate Center. Snowfall departure from normal in 2016. Image courtesy of Midwestern Regional Climate Center.