Illinois State Water Survey Illinois State Climatologist

A Very Warm October in Illinois

[Edited on October 26 to reflect update] Based on data through October 25, the statewide average temperature for Illinois in October is 60.7 degrees. That is 6.3 degrees above normal and the fourth warmest October on record. Temperatures for the rest of October are expected to be 3 to 5 degrees above normal. Therefore, this […]

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Above-Average Temperatures for April in Illinois

While there were a few cold stretches in April, the statewide average temperature for the month was 54.1 degrees, 1.7 degrees above average. Precipitation in Illinois for April was more complicated. April precipitation was in the range of two to four inches in northern and central Illinois, and 4 to 7 inches in southern Illinois. As […]

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