All-time weather records — Bay St. Louis, MS

Record high
104.0°F
August 2, 1986
Record low
6.1°F
January 21, 1985
Wettest day
11.63 in
August 30, 2012

Climate change signal in Bay St. Louis

10.4%

of Bay St. Louis's all-time daily heat records were set in the last decade (38 of 366 records since 2015).

3%

of all-time daily cold records were set in the last decade (11 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 #
1980s
114
184
1990s
73
92
2000s
122
62
2010s
41
27
2020s
16
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 1982, the latest in 2022. Period of observation: 1982-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 80.1°F — Jan 7, 2017 6.1°F — Jan 21, 1985 9.35 in — Jan 7, 1991
February 88.0°F — Feb 5, 1989 15.1°F — Feb 4, 1996 4.80 in — Feb 14, 2009
March 87.1°F — Mar 19, 2022 21.9°F — Mar 9, 1996 5.38 in — Mar 8, 1998
April 93.9°F — Apr 22, 1987 28.0°F — Apr 5, 1987 5.65 in — Apr 7, 1983
May 95.0°F — May 31, 1998 42.1°F — May 7, 1992 9.08 in — May 30, 2005
June 99.0°F — Jun 29, 1988 44.1°F — Jun 1, 1984 7.75 in — Jun 11, 2001
July 102.9°F — Jul 30, 1986 61.0°F — Jul 9, 1988 7.24 in — Jul 6, 2005
August 104.0°F — Aug 2, 1986 50.0°F — Aug 26, 2009 11.63 in — Aug 30, 2012
September 97.0°F — Sep 6, 1989 42.1°F — Sep 27, 2006 7.72 in — Sep 26, 2002
October 91.9°F — Oct 1, 1986 33.1°F — Oct 20, 1989 5.10 in — Oct 23, 2007
November 84.9°F — Nov 3, 2004 25.0°F — Nov 13, 2019 6.68 in — Nov 7, 1989
December 81.0°F — Dec 2, 1985 8.1°F — Dec 23, 1989 5.75 in — Dec 22, 2006

Click a month to see every daily record for that month in Bay St. Louis.