All-time weather records — Quincy, IL

Record high
180.0°F
April 18, 1976
Record low
-20.9°F
January 15, 1979
Wettest day
6.06 in
July 1, 1993

Climate change signal in Quincy

19.1%

of Quincy's all-time daily heat records were set in the last decade (70 of 366 records since 2015).

9.8%

of all-time daily cold records were set in the last decade (36 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 #
1930s
32
12
1940s
40
61
1950s
·
·
1960s
·
2
1970s
15
63
1980s
50
92
1990s
41
53
2000s
72
24
2010s
76
39
2020s
40
20

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 1937, the latest in 2026. Period of observation: 1937-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 79.0°F — Jan 19, 1996 -20.9°F — Jan 15, 1979 2.63 in — Jan 30, 1982
February 79.0°F — Feb 28, 2024 -17.0°F — Feb 9, 1982 3.27 in — Feb 21, 1997
March 91.0°F — Mar 22, 2026 -11.9°F — Mar 5, 1978 1.98 in — Mar 4, 1976
April 180.0°F — Apr 18, 1976 12.0°F — Apr 3, 2018 3.72 in — Apr 21, 1973
May 98.1°F — May 24, 1939 33.1°F — May 4, 2005 4.32 in — May 28, 1955
June 102.9°F — Jun 25, 1937 39.9°F — Jun 23, 2003 4.56 in — Jun 15, 1968
July 105.1°F — Jul 25, 2005 52.0°F — Jul 4, 1940 6.06 in — Jul 1, 1993
August 105.1°F — Aug 27, 2003 44.1°F — Aug 10, 1974 4.55 in — Aug 8, 1943
September 102.9°F — Sep 2, 2011 30.0°F — Sep 25, 1937 4.14 in — Sep 24, 1970
October 97.0°F — Oct 8, 1939 21.9°F — Oct 24, 1981 3.51 in — Oct 5, 1955
November 87.1°F — Nov 4, 1940 3.0°F — Nov 9, 1991 2.40 in — Nov 30, 2006
December 75.9°F — Dec 16, 2021 -18.0°F — Dec 25, 1983 3.75 in — Dec 3, 1982

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