Illinois State Water Survey Illinois State Climatologist

2015 Climate by the Numbers in Illinois

Here is a quick update on the statewide monthly temperature and precipitation departures from average for 2015 in Illinois. February 2015 stands out as a painful reminder of how cold it was late in the winter. However, both April and May have been warmer than average. All together, the average temperature of the first five […]

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Monthly Temperature and Precipitation for 2015 in Illinois

How things are shaping up in 2015? The outstanding features so far are the extremely cold February and the extremely wet conditions in southern Illinois while dry elsewhere. Monthly Temperature Departures from Average Blue means colder than average, red means warmer than average. Temperature departures from average tend to cover very large areas, making the […]

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