All-time weather records — Potosi, MO

Record high
111.9°F
July 23, 1901
Record low
-27.9°F
February 13, 1899
Wettest day
5.58 in
August 13, 1950

Climate change signal in Potosi

18%

of Potosi's all-time daily heat records were set in the last decade (66 of 366 records since 2015).

6.8%

of all-time daily cold records were set in the last decade (25 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
53
190
1900s
73
47
1940s
·
·
1950s
·
·
1980s
80
33
1990s
18
17
2000s
43
43
2010s
59
20
2020s
40
16

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 2026. Period of observation: 1893-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 73.9°F — Jan 21, 1986 -18.0°F — Jan 20, 1985 3.30 in — Jan 3, 1999
February 80.1°F — Feb 16, 2018 -27.9°F — Feb 13, 1899 3.24 in — Feb 21, 2018
March 95.0°F — Mar 23, 2026 -2.9°F — Mar 3, 2002 4.22 in — Mar 5, 2026
April 93.0°F — Apr 20, 1987 12.0°F — Apr 1, 1899 4.11 in — Apr 19, 2013
May 93.9°F — May 6, 2014 26.1°F — May 14, 1895 2.79 in — May 5, 1894
June 106.0°F — Jun 29, 2012 36.0°F — Jun 1, 1894 5.56 in — Jun 26, 1898
July 111.9°F — Jul 23, 1901 42.1°F — Jul 12, 1898 5.02 in — Jul 7, 1993
August 104.0°F — Aug 2, 1901 41.0°F — Aug 11, 2004 5.58 in — Aug 13, 1950
September 100.9°F — Sep 5, 1899 16.0°F — Sep 30, 1899 3.50 in — Sep 23, 1993
October 91.9°F — Oct 1, 1901 10.9°F — Oct 24, 1981 3.95 in — Oct 30, 2009
November 84.0°F — Nov 11, 1989 0.0°F — Nov 30, 1896 5.08 in — Nov 5, 2024
December 77.0°F — Dec 4, 2021 -26.0°F — Dec 20, 1901 3.03 in — Dec 1, 2006

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