All-time weather records — Sims, IL

Record high
113.0°F
July 22, 1901
Record low
-23.1°F
January 17, 1977
Wettest day
6.76 in
May 8, 1961

Climate change signal in Sims

6.8%

of Sims's all-time daily heat records were set in the last decade (25 of 366 records since 2015).

1.4%

of all-time daily cold records were set in the last decade (5 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
7
15
1900s
37
36
1910s
64
47
1920s
32
30
1930s
70
19
1940s
39
31
1950s
19
23
1960s
12
36
1970s
7
35
1980s
9
43
1990s
13
28
2000s
12
15
2010s
32
8
2020s
13
·

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 1896, the latest in 2026. Period of observation: 1895-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 77.0°F — Jan 24, 1943 -23.1°F — Jan 17, 1977 3.35 in — Jan 5, 1917
February 78.1°F — Feb 13, 1962 -22.0°F — Feb 5, 1951 3.59 in — Feb 7, 2019
March 91.0°F — Mar 24, 1929 -8.0°F — Mar 5, 1978 6.13 in — Mar 25, 1913
April 91.0°F — Apr 11, 1930 17.1°F — Apr 7, 1990 4.42 in — Apr 5, 2025
May 98.1°F — May 26, 1911 28.9°F — May 1, 1903 6.76 in — May 8, 1961
June 108.0°F — Jun 28, 2012 39.0°F — Jun 1, 1972 4.12 in — Jun 16, 2019
July 113.0°F — Jul 22, 1901 45.0°F — Jul 26, 1911 5.55 in — Jul 24, 1969
August 108.0°F — Aug 4, 1918 43.0°F — Aug 29, 1986 5.01 in — Aug 26, 2004
September 105.1°F — Sep 15, 1939 25.0°F — Sep 30, 1899 4.05 in — Sep 3, 1926
October 96.1°F — Oct 7, 2007 19.0°F — Oct 21, 1952 6.48 in — Oct 27, 1919
November 86.0°F — Nov 1, 2016 -2.9°F — Nov 30, 1929 4.89 in — Nov 14, 1993
December 73.9°F — Dec 2, 1982 -18.0°F — Dec 22, 1989 4.00 in — Dec 3, 1982

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