Monthly Temperature and Precipitation Departures for Illinois in 2015

Here are the statewide monthly temperature and precipitation departures for Illinois in 2015. The departures are from the 1981-2010 averages.

The standout features of 2015 so far have been:

  1. the very cold February, 19.4 degrees, and tied with 2014 as the 8th coldest February on record;
  2. the very wet June, 9.44 inches of precipitation and the wettest June on record.

Statewide records go back to 1895 and are maintained by the National Centers for Environmental Information.

Temperatures. Click to enlarge.
Temperatures. Click to enlarge.

Precipitation. Click to enlarge.
Precipitation. Click to enlarge.
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