All-time weather records — Winona, MS

Record high
105.1°F
August 31, 2000
Record low
-9.0°F
January 30, 1966
Wettest day
9.07 in
March 16, 1973

Climate change signal in Winona

10.9%

of Winona's all-time daily heat records were set in the last decade (40 of 366 records since 2015).

7.1%

of all-time daily cold records were set in the last decade (26 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 #
1950s
110
14
1960s
52
77
1970s
42
58
1980s
55
73
1990s
16
65
2000s
37
40
2010s
38
26
2020s
16
13

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 1953, the latest in 2025. Period of observation: 1953-2025.

Records by month

Month Hottest day Coldest day Wettest day
January 82.0°F — Jan 2, 2022 -9.0°F — Jan 30, 1966 5.48 in — Jan 1, 2011
February 84.0°F — Feb 24, 1996 0.0°F — Feb 4, 1996 4.98 in — Feb 10, 1966
March 87.1°F — Mar 11, 1955 9.0°F — Mar 3, 1980 9.07 in — Mar 16, 1973
April 91.9°F — Apr 22, 1987 24.1°F — Apr 4, 1987 4.96 in — Apr 14, 1969
May 96.1°F — May 27, 1953 34.0°F — May 4, 2013 5.55 in — May 19, 1983
June 100.9°F — Jun 28, 1954 39.9°F — Jun 1, 1984 4.33 in — Jun 10, 1997
July 104.0°F — Jul 30, 1986 37.0°F — Jul 24, 1987 4.74 in — Jul 24, 2011
August 105.1°F — Aug 31, 2000 50.0°F — Aug 13, 2004 5.76 in — Aug 5, 1995
September 104.0°F — Sep 4, 1954 34.0°F — Sep 29, 1967 6.32 in — Sep 27, 2002
October 97.0°F — Oct 1, 1954 25.0°F — Oct 20, 2022 5.42 in — Oct 17, 2006
November 88.0°F — Nov 1, 2016 12.0°F — Nov 30, 1976 4.00 in — Nov 10, 1979
December 82.0°F — Dec 3, 1982 -2.0°F — Dec 23, 1989 6.66 in — Dec 3, 1983

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