The weather pattern during June  featured a persistent storm track, which brought numerous weather systems across the area much of the month.
Several boundaries stalled over the area, and with the tropical air mass, heavy rains were common on several days. Local rainfall records were established. The state as a whole averaged 7.8 inches of rain, its 2nd wettest June on record, surpassed by only June 1902 (8.37 inches).
Several rivers rose above flood stage, as a result of all this rain. The Illinois, Spoon, Sangamon, and Wabash Rivers were most affected.
The same weather pattern that kept the wet pattern over us also caused warm and humid weather much of the month. Average temperatures were 3 to 5 degrees above normal for the month.