All-time weather records — Hamilton, MO

Record high
109.0°F
July 14, 1954
Record low
-27.0°F
January 15, 1979
Wettest day
6.32 in
May 7, 2007

Climate change signal in Hamilton

8.2%

of Hamilton's all-time daily heat records were set in the last decade (30 of 366 records since 2015).

3.3%

of all-time daily cold records were set in the last decade (12 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 #
1950s
47
8
1960s
72
30
1970s
37
83
1980s
58
86
1990s
45
91
2000s
38
29
2010s
63
34
2020s
6
5

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 1954, the latest in 2021. Period of observation: 1954-2021.

Records by month

Month Hottest day Coldest day Wettest day
January 72.0°F — Jan 29, 2013 -27.0°F — Jan 15, 1979 2.00 in — Jan 30, 1982
February 78.1°F — Feb 23, 2017 -27.0°F — Feb 6, 1982 2.77 in — Feb 21, 1997
March 86.0°F — Mar 27, 1991 -17.0°F — Mar 12, 1998 2.75 in — Mar 19, 1982
April 91.9°F — Apr 27, 1989 7.0°F — Apr 2, 2018 3.03 in — Apr 11, 1997
May 97.0°F — May 21, 1956 25.0°F — May 2, 1995 6.32 in — May 7, 2007
June 102.0°F — Jun 23, 1988 34.0°F — Jun 10, 1988 4.20 in — Jun 27, 2011
July 109.0°F — Jul 14, 1954 43.0°F — Jul 31, 1971 4.00 in — Jul 22, 1957
August 108.0°F — Aug 30, 1984 39.9°F — Aug 28, 1986 3.60 in — Aug 8, 2020
September 100.0°F — Sep 2, 1975 27.0°F — Sep 19, 1991 4.92 in — Sep 14, 1993
October 96.1°F — Oct 5, 1963 14.0°F — Oct 31, 1993 4.47 in — Oct 5, 1998
November 82.0°F — Nov 9, 1980 -9.9°F — Nov 7, 1991 3.00 in — Nov 17, 1958
December 72.0°F — Dec 1, 1995 -27.0°F — Dec 23, 1989 2.10 in — Dec 14, 1992

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