All-time weather records — Cottage Grove, WI

Record high
104.0°F
July 5, 2012
Record low
-36.9°F
January 30, 1951
Wettest day
4.51 in
June 17, 1996

Climate change signal in Cottage Grove

15.8%

of Cottage Grove's all-time daily heat records were set in the last decade (58 of 366 records since 2015).

2.7%

of all-time daily cold records were set in the last decade (10 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
2
·
1940s
54
28
1950s
59
47
1960s
29
97
1970s
38
89
1980s
34
48
1990s
36
25
2000s
28
17
2010s
50
13
2020s
36
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 1939, the latest in 2026. Period of observation: 1939-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 62.1°F — Jan 26, 1944 -36.9°F — Jan 30, 1951 1.84 in — Jan 29, 2013
February 70.0°F — Feb 27, 2024 -29.0°F — Feb 3, 1996 1.61 in — Feb 27, 1948
March 82.9°F — Mar 21, 2012 -29.0°F — Mar 1, 1962 2.78 in — Mar 30, 1998
April 93.9°F — Apr 22, 1980 0.0°F — Apr 7, 1982 2.63 in — Apr 13, 2014
May 95.0°F — May 27, 2018 19.0°F — May 1, 1978 3.66 in — May 21, 2004
June 100.9°F — Jun 20, 1988 30.9°F — Jun 10, 1972 4.51 in — Jun 17, 1996
July 104.0°F — Jul 5, 2012 36.0°F — Jul 6, 1965 3.89 in — Jul 3, 1975
August 102.0°F — Aug 16, 1988 35.1°F — Aug 27, 1968 3.78 in — Aug 20, 2018
September 99.0°F — Sep 1, 1953 25.0°F — Sep 22, 1974 4.32 in — Sep 8, 1941
October 90.0°F — Oct 1, 1976 12.9°F — Oct 30, 1988 2.78 in — Oct 18, 1984
November 77.0°F — Nov 1, 1944 -8.0°F — Nov 25, 1950 2.30 in — Nov 1, 1971
December 68.0°F — Dec 15, 2021 -25.1°F — Dec 19, 1983 2.19 in — Dec 3, 1990

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