All-time weather records — Seneca, MO

Record high
111.9°F
July 14, 1954
Record low
-31.0°F
January 22, 1930
Wettest day
7.11 in
October 9, 2009

Climate change signal in Seneca

10.4%

of Seneca's all-time daily heat records were set in the last decade (38 of 366 records since 2015).

1.1%

of all-time daily cold records were set in the last decade (4 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
36
36
1900s
32
34
1910s
33
40
1920s
19
37
1930s
60
23
1940s
19
24
1950s
44
38
1960s
17
24
1970s
11
24
1980s
32
47
1990s
9
15
2000s
10
14
2010s
16
8
2020s
28
2

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 2026. Period of observation: 1893-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 78.1°F — Jan 1, 1965 -31.0°F — Jan 22, 1930 3.76 in — Jan 5, 2005
February 87.1°F — Feb 23, 1996 -29.9°F — Feb 12, 1899 3.08 in — Feb 21, 1997
March 93.0°F — Mar 20, 1907 -11.0°F — Mar 12, 1948 4.85 in — Mar 20, 2012
April 95.0°F — Apr 19, 1987 6.1°F — Apr 13, 1957 5.73 in — Apr 30, 2017
May 97.0°F — May 16, 1911 25.0°F — May 1, 1903 5.76 in — May 24, 2011
June 105.1°F — Jun 30, 1894 37.9°F — Jun 10, 1988 5.49 in — Jun 11, 2003
July 111.9°F — Jul 14, 1954 44.1°F — Jul 22, 1970 4.86 in — Jul 3, 1976
August 109.0°F — Aug 9, 1936 39.9°F — Aug 29, 1988 5.17 in — Aug 4, 1911
September 105.1°F — Sep 2, 1985 27.0°F — Sep 30, 1984 6.21 in — Sep 9, 1895
October 95.0°F — Oct 5, 2024 14.0°F — Oct 30, 1917 7.11 in — Oct 9, 2009
November 86.0°F — Nov 8, 2023 3.9°F — Nov 16, 1932 5.88 in — Nov 12, 1909
December 80.1°F — Dec 27, 2025 -23.1°F — Dec 9, 1917 7.00 in — Dec 16, 1895

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