All-time weather records — Mattoon, IL

Record high
111.0°F
July 14, 1954
Record low
-23.1°F
January 20, 1985
Wettest day
5.56 in
July 21, 1896

Climate change signal in Mattoon

0%

of Mattoon's all-time daily heat records were set in the last decade (0 of 366 records since 2015).

0%

of all-time daily cold records were set in the last decade (0 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 #
1890s
28
18
1900s
42
28
1940s
6
7
1950s
89
77
1960s
51
79
1970s
35
53
1980s
74
70
1990s
32
32
2000s
9
2
2010s
·
·
2020s
·
·

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 1893, the latest in 2001. Period of observation: 1893-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 70.0°F — Jan 25, 1950 -23.1°F — Jan 20, 1985 3.34 in — Jan 3, 1950
February 73.9°F — Feb 24, 2000 -17.0°F — Feb 3, 1996 2.88 in — Feb 14, 1949
March 84.9°F — Mar 31, 1981 -8.0°F — Mar 6, 1960 3.02 in — Mar 8, 1964
April 89.1°F — Apr 29, 1987 17.1°F — Apr 3, 1987 3.06 in — Apr 7, 2006
May 95.0°F — May 20, 1987 28.0°F — May 10, 1966 3.22 in — May 31, 1902
June 105.1°F — Jun 26, 1954 36.0°F — Jun 12, 1903 4.77 in — Jun 11, 2018
July 111.0°F — Jul 14, 1954 46.0°F — Jul 11, 1898 5.56 in — Jul 21, 1896
August 104.0°F — Aug 16, 1988 39.9°F — Aug 29, 1986 4.86 in — Aug 26, 1992
September 102.9°F — Sep 5, 1954 3.9°F — Sep 26, 1987 5.03 in — Sep 1, 2003
October 91.9°F — Oct 2, 1953 19.0°F — Oct 26, 1962 3.70 in — Oct 11, 2019
November 82.0°F — Nov 1, 1950 -2.0°F — Nov 24, 1950 3.43 in — Nov 1, 1992
December 71.1°F — Dec 4, 1998 -20.0°F — Dec 22, 1989 4.07 in — Dec 27, 2015

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