All-time weather records — Bloomsdale, MO

Record high
111.9°F
September 6, 1990
Record low
-18.0°F
January 20, 1985
Wettest day
80.00 in
March 29, 1982

Climate change signal in Bloomsdale

15.3%

of Bloomsdale's all-time daily heat records were set in the last decade (56 of 366 records since 2015).

10.7%

of all-time daily cold records were set in the last decade (39 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 #
1970s
18
73
1980s
121
133
1990s
77
62
2000s
46
29
2010s
78
46
2020s
26
23

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 1975, the latest in 2026. Period of observation: 1974-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 73.9°F — Jan 22, 1986 -18.0°F — Jan 20, 1985 3.75 in — Jan 9, 1997
February 84.0°F — Feb 28, 2024 -14.1°F — Feb 3, 1985 2.60 in — Feb 7, 1999
March 91.9°F — Mar 27, 2026 -4.0°F — Mar 4, 1978 80.00 in — Mar 29, 1982
April 99.0°F — Apr 28, 1989 21.9°F — Apr 10, 2007 4.39 in — Apr 5, 2025
May 98.1°F — May 21, 1998 30.9°F — May 3, 1976 3.58 in — May 1, 1983
June 109.0°F — Jun 29, 2012 44.1°F — Jun 10, 1988 3.93 in — Jun 17, 2015
July 109.0°F — Jul 28, 1987 45.0°F — Jul 26, 1992 3.97 in — Jul 5, 2007
August 109.0°F — Aug 17, 1988 41.0°F — Aug 29, 1986 2.42 in — Aug 29, 2004
September 111.9°F — Sep 6, 1990 32.0°F — Sep 24, 1989 3.67 in — Sep 17, 2016
October 96.1°F — Oct 14, 1989 23.0°F — Oct 25, 1981 3.26 in — Oct 9, 2009
November 89.1°F — Nov 1, 1990 8.1°F — Nov 29, 1976 4.26 in — Nov 5, 2024
December 78.1°F — Dec 4, 1988 -18.0°F — Dec 24, 1989 8.10 in — Dec 28, 1990

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