Welcome

This website provides a wide range of climate data, products, and services on Illinois. We have access to more data stored offline. In addition, we do research in Illinois on past climate events, monitor current conditions, and study possible future climate change.

I am available for public talks, media interviews, and research projects. See the About Us page for more information.

Jim Angel, jimangel@uiuc.edu, (217)-333-0729

C-U Observations

Illinois State Climatologist Office

Jim Angel, state climatologist

Recent News/Events

Third wettest January-April on record for Illinois

For the fourth time this year, the monthly statewide precipitation has been above average, resulting in the third wettest January-April since 1895. April precipitation was 4.7 inches, 23 percent above average. Combined with wet conditions in January, February, and March, the year-to-date total is 17.1 inches. Only 1950 and 1898 were wetter with 18.2 and 17.2 inches of precipitation, respectively... read more on the third wettest January-April on record.

Heavy Rain in Southern Illinois Results in Widespread Flooding

Update: Press release on March Precipitation. While northern Illinois received more snow in March, southern Illinois received heavy rain that resulted in significant flooding. Rainfall totals in southern Illinois, south of Interstate 70, generally exceeded 6 inches in March and amounts over 10 inches were very common... read more on the heavy rains in March 2008.

Wettest February Ends Third Wettest Winter

This past February was the wettest on record in Illinois with statewide records going back to 1895. The 4.48 inches of precipitation was 2.49 inches above average. Record precipitation combined with wetter than average conditions in December and January have made this the third wettest winter on record with 11.32 inches, 4.63 inches above average. See the press release on this February and winter.

Heavy rains and flooding in early January 2008

On January 7, winter weather gave way to spring-like conditions with record-breaking warmth, heavy rains, and severe weather across Illinois (including four reported tornadoes). Read more on the heavy rains and flooding in January 2008 and see the press release on the spring-like weather in January.

Heavy Rains in northern Illinois in August 2007

Northern Illinois was plagued by heavy rainfalls in August 2007. Northeastern Illinois averaged 11.61 inches, the highest August total since those records began in 1895. More on the heavy rains in northern Illinois in August 2007.