Rainfall amounts ranged from 4 to 6 inches in
northern Illinois and 4 to 10 inches in central Illinois to 10 to 15
inches in southern Illinois. The largest rainfall totals were in far
southern Illinois.
For example, Anna reported 20.01 inches, the
highest total in the state. Brookport reported 15.29 inches, and
Cairo reported 15.13 inches.
The statewide average temperature for April was
52.6 degrees, 0.5 degrees above average. Temperatures ranged from 1
to 2 degrees below average in northern Illinois and near-average in
central Illinois to 1 to 3 degrees above average in southern
Illinois. Wide temperature swings occurred, with temperatures
ranging from 18 degrees at Marengo on April 1 to 93 degrees at
Kaskaskia on April 11.
Statewide records go back to 1895. These
numbers are current as of April 29 and may change as more data
arrives.
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The Illinois State Water Survey at the
University of Illinois at Urbana-Champaign, a division of the
Institute of Natural Resource Sustainability, is the primary agency
in Illinois concerned with water and atmospheric resources.
[Text from file received from
the Illinois
State Water Survey] |