All-time weather records — Mount Leonard, MO

Record high
111.9°F
July 14, 1954
Record low
-26.0°F
February 13, 1905
Wettest day
9.75 in
June 25, 2021

Climate change signal in Mount Leonard

8.2%

of Mount Leonard's all-time daily heat records were set in the last decade (30 of 366 records since 2015).

2.5%

of all-time daily cold records were set in the last decade (9 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
36
68
1900s
16
44
1910s
42
49
1920s
38
36
1930s
78
15
1940s
21
25
1950s
35
21
1960s
22
28
1970s
16
16
1980s
10
20
1990s
8
19
2000s
6
8
2010s
13
10
2020s
25
7

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 75.0°F — Jan 23, 1909 -20.9°F — Jan 18, 1930 2.72 in — Jan 2, 1897
February 82.0°F — Mar 1, 1972 -26.0°F — Feb 13, 1905 3.46 in — Feb 22, 1985
March 91.9°F — Mar 21, 1910 -14.1°F — Mar 5, 1960 3.30 in — Mar 25, 1920
April 97.0°F — Apr 29, 1895 6.1°F — Apr 5, 1920 5.87 in — Apr 21, 1973
May 100.9°F — May 30, 1934 25.0°F — May 4, 1907 4.89 in — May 16, 1990
June 105.1°F — Jun 19, 1936 39.0°F — Jun 4, 1945 9.75 in — Jun 25, 2021
July 111.9°F — Jul 14, 1954 46.0°F — Jul 5, 1915 5.10 in — Jul 15, 1910
August 109.9°F — Aug 4, 1918 39.9°F — Aug 21, 1895 4.65 in — Aug 12, 1993
September 105.1°F — Sep 6, 1925 28.0°F — Sep 30, 1895 5.81 in — Sep 22, 1970
October 97.0°F — Oct 7, 1939 18.0°F — Oct 31, 1925 4.30 in — Oct 8, 1914
November 87.1°F — Nov 8, 1945 -2.9°F — Nov 8, 1991 5.35 in — Nov 1, 1977
December 73.9°F — Dec 16, 2021 -24.0°F — Dec 23, 1989 2.32 in — Dec 11, 2003

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