All-time weather records — St. Leo, MN

Record high
111.0°F
July 12, 1936
Record low
-33.0°F
January 22, 1936
Wettest day
5.35 in
August 19, 1926

Climate change signal in St. Leo

10.4%

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

2.7%

of all-time daily cold records were set in the last decade (10 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 #
1910s
3
26
1920s
31
50
1930s
76
39
1940s
39
40
1950s
27
46
1960s
28
48
1970s
18
41
1980s
39
28
1990s
25
22
2000s
32
7
2010s
18
16
2020s
30
3

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 1916, the latest in 2026. Period of observation: 1916-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 90.0°F — Jan 2, 1949 -33.0°F — Jan 22, 1936 1.55 in — Jan 27, 1944
February 66.9°F — Feb 16, 1981 -32.1°F — Feb 16, 1936 2.10 in — Feb 26, 1944
March 84.0°F — Mar 18, 1921 -27.9°F — Mar 1, 1962 2.60 in — Mar 28, 1924
April 98.1°F — Apr 21, 1980 0.0°F — Apr 7, 1936 2.16 in — Apr 23, 2001
May 100.0°F — May 28, 2018 10.0°F — May 5, 1951 2.93 in — May 8, 2000
June 109.9°F — Jun 29, 1931 33.1°F — Jun 2, 1946 3.90 in — Jun 29, 2025
July 111.0°F — Jul 12, 1936 19.9°F — Jul 26, 1942 5.29 in — Jul 27, 1963
August 108.0°F — Aug 1, 1988 35.1°F — Aug 20, 1950 5.35 in — Aug 19, 1926
September 106.0°F — Sep 10, 1931 21.9°F — Sep 22, 1974 4.15 in — Sep 16, 1921
October 93.9°F — Oct 2, 2023 9.0°F — Oct 23, 1917 2.95 in — Oct 31, 1979
November 82.0°F — Nov 9, 1999 -16.1°F — Nov 30, 1964 3.23 in — Nov 20, 1975
December 72.0°F — Dec 3, 1941 -27.9°F — Dec 29, 1917 1.64 in — Dec 26, 2023

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