Illinois State Water Survey Illinois State Climatologist

February – 7th Coldest on Record for Illinois

The statewide average temperature for February was 18.6 degrees. That is 12.3 degrees below the 1981-2010 average and the 7th coldest February on record. By comparison, February 2014 was 9th coldest at 19.5 degrees. Here are some amazing statistics for Chicago. February was tied with 1875 for the coldest on record, according to the Chicago National […]

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Quiet Winter for Snowfall across central US

Snowfall across the central US has been slightly below average so far this winter and stands in stark contrast to last winter. However, the impact on soil moisture, rivers, and streams has been minimal. Here is an example of snowfall differences. At Chicago O’Hare airport the snowfall total for this winter through January 14 is […]

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First Snow in Illinois

Traces of snow were reported in Chicago and Rockford on October 4. A few years ago I did a post on the earliest and median dates for the first measurable snowfall of the season. Measurable means at least 0.1 inches or more.  Snow flurries or traces of snow do not count since they have not […]

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February Seventh Coldest on Record

Based on preliminary data, the Illinois statewide temperature for February was 18.7 degrees. That was 12.1 degrees below the long-term average and the seventh coldest February on record. No surprise there. The statewide average temperature for the three core winter months of December, January, and February was 20.8 degrees. That was 8.2 degrees below average […]

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