May Rainfall in Illinois – Wet in the South, Dry Elsewhere

Rainfall amounts in May varied widely across Illinois. Much of northern and central Illinois received between 2 and 3 inches of rain. Meanwhile, southern Illinois had widespread amounts of 4 to 7 inches. The highest total for May was Cairo with 7.46 inches of rain. Not far behind it were Grand Chain Dam with 6.80 inches and Carbondale with 6.79 inches.

As of May 24, much of northern and central Illinois are slightly below average on rainfall, which has greatly helped with field work. As of May 22, 90 percent of the corn and 47 percent of the soybeans had been planted. Both numbers are slightly ahead of the 5-year average.

Drier-than-average conditions occurred in northern Missouri, much of Iowa, and southern Wisconsin. Wetter-than-average conditions occurred in Minnesota, southern Missouri, and much of Michigan, Indiana, Ohio, and Kentucky.

May rainfall across the Midwest
Rainfall across the Midwest, as a departure from the 1971-2000 average, for the period of May 1-24, 2011.
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