Last month went on record as Illinois' seventh warmest October, with the average temperature hitting 59.8 degrees.
That's 5.4 degrees higher than the normal temperature, according to the Illinois State Water Survey at the University of Illinois at Urbana-Champaign, a division of the Prairie Research Institute.
Climatologists say Illinois saw its warmest October in 1963. The average temperature at that time was 63.6 degrees.
Additionally, the Prairie State "has experienced above-normal temperatures in 9 out of the 10 months in 2016," the Illinois State Water Survey said in a news release.
"As a result, this is the 4th warmest January through October on record for Illinois at 58.0 degrees and 2.5 degrees above normal," the release added. "The warmest January-October was in 2012 with 59.1 degrees."