Illinois State Water Survey Illinois State Climatologist

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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Cold Start to November in the Midwest

So far, November has been cooler than average across Illinois and the eastern two-thirds of the Midwest (below). The statewide average temperature is about 5 degrees below average. The NWS forecasts indicate that temperatures are likely to stay below-average for the next two weeks across Illinois and the Midwest. The second and third maps are the […]

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El Nino and the Midwest

NOAA has released a new 2-page fact sheet on El Niño and the Midwest (links below). Several people in the Midwest had input into this, including myself. El Niño typically results in warmer and drier than average winters. Confidence in these patterns is higher during stronger El Niño events. Right now the NOAA Climate Prediction Center […]

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Cool Maps of the Cool July

I will admit it – ever since I was a kid I have been fascinated/obsessed with maps. It is probably why I ended up in a career in climatology since we use maps all the time. Here are maps from the National Climatic Data Center showing how cool July was across the Midwest. The regions […]

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