All-time weather records — Denison, KS

Record high
109.9°F
July 14, 1980
Record low
-23.1°F
February 16, 2021
Wettest day
8.42 in
October 2, 2005

Climate change signal in Denison

12.8%

of Denison's all-time daily heat records were set in the last decade (47 of 366 records since 2015).

10.4%

of all-time daily cold records were set in the last decade (38 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 #
1900s
1
12
1910s
48
41
1920s
·
·
1930s
·
·
1940s
·
1
1950s
55
28
1960s
49
53
1970s
22
77
1980s
59
43
1990s
36
36
2000s
40
21
2010s
28
31
2020s
28
23

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 1903, the latest in 2026. Period of observation: 1902-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 75.0°F — Jan 29, 2013 -22.0°F — Jan 28, 1915 2.11 in — Jan 5, 2025
February 81.0°F — Mar 1, 1972 -23.1°F — Feb 16, 2021 2.17 in — Feb 21, 1997
March 93.9°F — Mar 22, 2026 -20.9°F — Mar 4, 1978 2.90 in — Mar 16, 1919
April 93.0°F — Apr 13, 2006 5.0°F — Apr 3, 1975 4.50 in — Apr 19, 1929
May 99.0°F — May 29, 1913 21.9°F — May 3, 1976 4.52 in — May 4, 1938
June 109.0°F — Jun 27, 1980 39.9°F — Jun 1, 1982 5.55 in — Jun 9, 1982
July 109.9°F — Jul 14, 1980 43.0°F — Jul 5, 1972 6.23 in — Jul 16, 1968
August 109.9°F — Aug 5, 1913 39.9°F — Aug 31, 1915 4.96 in — Aug 18, 1960
September 109.0°F — Sep 2, 2000 28.9°F — Sep 23, 1983 6.92 in — Sep 14, 1930
October 97.0°F — Oct 5, 1963 14.0°F — Oct 31, 1993 8.42 in — Oct 2, 2005
November 84.9°F — Nov 13, 1999 -7.1°F — Nov 28, 1976 3.55 in — Nov 13, 1931
December 73.9°F — Dec 16, 2021 -23.1°F — Dec 22, 1989 4.25 in — Dec 8, 1980

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