All-time weather records — Winona, MN

Record high
108.0°F
July 12, 1936
Record low
-35.0°F
January 12, 1912
Wettest day
4.95 in
August 19, 2007

Climate change signal in Winona

0%

of Winona's all-time daily heat records were set in the last decade (0 of 366 records since 2015).

0%

of all-time daily cold records were set in the last decade (0 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
14
8
1900s
7
23
1910s
30
55
1920s
37
61
1930s
81
21
1940s
30
13
1950s
30
28
1960s
26
44
1970s
17
81
1980s
33
19
1990s
27
9
2000s
34
4

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 2009. Period of observation: 1893-2009.

Records by month

Month Hottest day Coldest day Wettest day
January 64.0°F — Jan 25, 1944 -35.0°F — Jan 12, 1912 2.25 in — Jan 22, 1998
February 73.0°F — Feb 25, 2000 -33.0°F — Feb 1, 1918 1.65 in — Feb 22, 1922
March 84.0°F — Mar 23, 1910 -27.9°F — Mar 1, 1962 2.00 in — Mar 25, 1996
April 96.1°F — Apr 30, 1952 3.9°F — Apr 1, 1924 3.00 in — Apr 3, 1999
May 107.1°F — May 31, 1934 21.0°F — May 1, 1956 3.83 in — May 1, 1936
June 106.0°F — Jun 28, 1931 35.1°F — Jun 9, 1937 4.42 in — Jun 6, 1914
July 108.0°F — Jul 12, 1936 19.0°F — Jul 22, 1895 4.30 in — Jul 1, 1978
August 102.9°F — Aug 24, 1948 33.1°F — Aug 30, 1915 4.95 in — Aug 19, 2007
September 102.0°F — Sep 6, 1922 25.0°F — Sep 28, 1942 3.70 in — Sep 16, 1992
October 93.0°F — Oct 3, 1997 7.0°F — Oct 30, 1925 2.64 in — Oct 11, 1986
November 84.0°F — Nov 1, 1950 -11.0°F — Nov 26, 1977 4.50 in — Nov 27, 1995
December 64.9°F — Dec 5, 1998 -27.9°F — Dec 19, 1983 2.08 in — Dec 15, 1996

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