All-time weather records — Clayton, WI

Record high
108.0°F
July 14, 1936
Record low
-45.9°F
January 9, 1977
Wettest day
4.98 in
September 3, 2015

Climate change signal in Clayton

12.3%

of Clayton's all-time daily heat records were set in the last decade (45 of 366 records since 2015).

0.8%

of all-time daily cold records were set in the last decade (3 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 #
1920s
12
87
1930s
74
48
1940s
38
38
1950s
23
42
1960s
32
44
1970s
18
50
1980s
39
34
1990s
32
7
2000s
30
2
2010s
33
13
2020s
35
1

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 1922, the latest in 2025. Period of observation: 1922-2025.

Records by month

Month Hottest day Coldest day Wettest day
January 54.0°F — Jan 25, 1981 -45.9°F — Jan 9, 1977 1.71 in — Jan 18, 1996
February 60.1°F — Feb 27, 2024 -45.9°F — Feb 16, 1936 2.50 in — Feb 19, 1939
March 80.1°F — Mar 30, 1986 -40.0°F — Mar 1, 1962 1.91 in — Mar 23, 2011
April 90.0°F — Apr 22, 1980 -9.9°F — Apr 1, 1924 3.20 in — Apr 27, 1975
May 104.0°F — May 31, 1934 9.0°F — May 3, 2013 2.97 in — May 17, 2017
June 102.0°F — Jun 1, 1934 5.0°F — Jun 2, 1996 4.75 in — Jun 15, 1922
July 108.0°F — Jul 14, 1936 30.9°F — Jul 14, 1930 3.72 in — Jul 2, 1992
August 100.9°F — Aug 1, 1988 30.9°F — Aug 30, 1931 3.75 in — Aug 28, 1960
September 102.9°F — Sep 10, 1931 21.9°F — Sep 29, 1945 4.98 in — Sep 3, 2015
October 89.1°F — Oct 2, 2023 8.1°F — Oct 27, 1976 2.65 in — Oct 5, 2005
November 75.9°F — Nov 1, 1933 -22.0°F — Nov 30, 1964 3.52 in — Nov 12, 2015
December 61.0°F — Dec 2, 1998 -43.1°F — Dec 19, 1983 1.51 in — Dec 25, 1982

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