All-time weather records — Salem, IL

Record high
105.1°F
July 8, 2012
Record low
-23.1°F
January 19, 1994
Wettest day
6.36 in
September 9, 2018

Climate change signal in Salem

14.5%

of Salem's all-time daily heat records were set in the last decade (53 of 366 records since 2015).

7.9%

of all-time daily cold records were set in the last decade (29 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 #
1910s
·
·
1920s
·
·
1930s
·
·
1940s
31
11
1950s
8
13
1960s
67
116
1970s
45
71
1980s
79
56
1990s
35
38
2000s
21
14
2010s
37
36
2020s
43
11

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 1942, the latest in 2026. Period of observation: 1915-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 71.1°F — Jan 24, 1943 -23.1°F — Jan 19, 1994 2.76 in — Jan 30, 1916
February 78.1°F — Feb 13, 1962 -23.1°F — Feb 10, 1982 2.88 in — Feb 11, 2009
March 90.0°F — Mar 23, 2026 -8.0°F — Mar 5, 1978 3.82 in — Mar 19, 2008
April 91.0°F — Apr 29, 1987 19.9°F — Apr 7, 1990 5.91 in — Apr 5, 2025
May 100.0°F — May 29, 1944 30.9°F — May 1, 1960 4.55 in — May 8, 1961
June 104.0°F — Jun 29, 2012 37.9°F — Jun 3, 1969 4.40 in — Jun 15, 1957
July 105.1°F — Jul 8, 2012 48.0°F — Jul 4, 1967 4.42 in — Jul 9, 1942
August 105.1°F — Aug 20, 1983 44.1°F — Aug 13, 1964 4.90 in — Aug 4, 1998
September 100.0°F — Sep 6, 1960 33.1°F — Sep 23, 1974 6.36 in — Sep 9, 2018
October 93.9°F — Oct 2, 2019 21.0°F — Oct 24, 1981 4.26 in — Oct 26, 1919
November 82.0°F — Nov 2, 1987 1.9°F — Nov 17, 1959 4.85 in — Nov 14, 1993
December 73.9°F — Dec 2, 1982 -20.0°F — Dec 22, 1989 4.27 in — Dec 21, 1967

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