All-time weather records — Glencoe, IL

Record high
105.1°F
July 6, 2012
Record low
-27.0°F
January 10, 1982
Wettest day
5.54 in
August 14, 1987

Climate change signal in Glencoe

10.9%

of Glencoe's all-time daily heat records were set in the last decade (40 of 366 records since 2015).

8.2%

of all-time daily cold records were set in the last decade (30 of 366 records since 2015).

If records were spread evenly across the station's history, you'd expect roughly 5% per decade. Decade-by-decade, here's where each record-breaking day was set:

Decade Heat records set # Cold records set #
1980s
77
118
1990s
100
116
2000s
92
71
2010s
97
61

Records are the all-time daily extremes that are still standing — each daily record can only be held by one year. The station's earliest hot record was set in 1982, the latest in 2019. Period of observation: 1981-2019.

Records by month

Month Hottest day Coldest day Wettest day
January 64.9°F — Jan 8, 2008 -27.0°F — Jan 10, 1982 2.14 in — Jan 1, 1985
February 73.9°F — Feb 26, 2000 -20.0°F — Feb 1, 2019 3.20 in — Feb 21, 1997
March 86.0°F — Mar 21, 2012 -5.1°F — Mar 4, 2002 2.00 in — Mar 4, 1985
April 90.0°F — Apr 19, 2002 10.0°F — Apr 7, 1982 2.72 in — Apr 18, 2013
May 95.0°F — May 28, 2012 28.0°F — May 3, 2004 3.30 in — May 13, 2014
June 102.0°F — Jun 22, 1988 37.0°F — Jun 1, 1993 4.50 in — Jun 24, 1994
July 105.1°F — Jul 6, 2012 45.0°F — Jul 1, 1982 4.01 in — Jul 23, 2011
August 100.9°F — Aug 2, 1988 42.1°F — Aug 29, 1986 5.54 in — Aug 14, 1987
September 97.0°F — Sep 7, 1990 30.0°F — Sep 23, 1995 3.35 in — Sep 14, 2008
October 89.1°F — Oct 8, 2007 24.1°F — Oct 19, 1992 3.59 in — Oct 3, 2006
November 77.0°F — Nov 2, 2016 6.1°F — Nov 13, 1986 2.33 in — Nov 1, 1994
December 70.0°F — Dec 4, 2012 -20.0°F — Dec 24, 1983 2.79 in — Dec 3, 1982

Click a month to see every daily record for that month in Glencoe.