A Rainy June Set a New Record for Illinois, Illinois State Water Survey

ISWS Press Release

For Immediate Release July 1, 2015
A Rainy June Set a New Record for Illinois
Jim Angel, Ph.D. - (217) 333-0729, jimangel@illinois.edu
Lisa Sheppard - (217) 244-7270, sheppard@illinois.edu

CHAMPAIGN, Ill. - The statewide average precipitation for June 2015 in Illinois was 9.53 inches, or 5.33 inches above the average June precipitation. This was the wettest June on record for Illinois, 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 second wettest June on record was in 1902 with 8.27 inches of rain.

In addition to being the wettest June on record, it is the second wettest month on record for Illinois. Only September 1926 was wetter at 9.62 inches – just 0.09 inches higher.

While the statewide average was 9.53 inches, several sites have reported much more than that. Near Ashkum, IL (Iroquois County), a monthly total of 17.20 inches was reported. Chebanse (Kankakee County) reported a monthly total of 16.17 inches.

The statewide average temperature for June was 71.9 degrees, 0.1 degree above average.


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.

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