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
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.