May Was Warm and Wet in Illinois, Illinois State Water Survey

ISWS Press Release

For Immediate Release June 1, 2015
May Was Warm and Wet in Illinois
Jim Angel, Ph.D. - (217) 333-0729,
Lisa Sheppard - (217) 244-7270,

CHAMPAIGN, Ill. - Despite cool weather at times, May was 2.3 degrees above average on temperature and 1 inch above average on rainfall, according to Illinois State Climatologist Jim Angel, Illinois State Water Survey, University of Illinois.

Multi-sensor Precipitation: Departure from Normal (inches)
Multi-sensor Precipitation: Departure from
Normal (in.)

The statewide average rainfall was 5.6 inches, which was 1 inch above average and the 22nd wettest May on record. Some of the heaviest amounts were seen in northwest Illinois and just southeast of St. Louis.

The highest reported monthly rainfall total was 9.41 inches at Red Bud (Randolph County). The next highest total was 8.77 inches at Mt. Carroll.

Most of Illinois was near average to above average in rainfall for May. There was a stretch of Illinois to the east of Interstate 57 from near Champaign southward with below-average rainfall.


The Illinois State Water Survey at the University of Illinois at Urbana-Champaign, a division of the Prairie Research Institute, is the primary agency in Illinois concerned with water and atmospheric resources.

| News |

Illinois State Water Survey

2204 Griffith Dr
Champaign, IL 61820-7463

Terms of use. Email the Web Administrator with questions or comments.

© 2018 University of Illinois Board of Trustees. All rights reserved.
For permissions information, contact the Illinois State Water Survey.
Site Map