All-time weather records — Grand Marais, MN

Record high
100.0°F
August 7, 1930
Record low
-34.1°F
January 23, 1935
Wettest day
5.43 in
June 29, 1996

Climate change signal in Grand Marais

7.1%

of Grand Marais's all-time daily heat records were set in the last decade (26 of 366 records since 2015).

3.3%

of all-time daily cold records were set in the last decade (12 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 #
1900s
·
·
1910s
58
36
1920s
39
47
1930s
33
42
1940s
26
62
1950s
23
45
1960s
22
30
1970s
19
25
1980s
25
18
1990s
25
19
2000s
51
15
2010s
26
23
2020s
19
4

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 1913, the latest in 2026. Period of observation: 1900-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 50.0°F — Jan 3, 1915 -34.1°F — Jan 23, 1935 1.60 in — Jan 1, 1935
February 57.9°F — Feb 25, 1976 -34.1°F — Feb 9, 1933 1.40 in — Feb 19, 1924
March 66.9°F — Mar 28, 1986 -24.0°F — Mar 2, 1943 2.20 in — Mar 29, 1938
April 82.9°F — Apr 29, 1965 -8.0°F — Apr 1, 1975 2.62 in — Apr 17, 1967
May 88.0°F — May 29, 1986 17.1°F — May 9, 1947 2.78 in — May 5, 1950
June 93.0°F — Jun 29, 1970 25.0°F — Jun 12, 1947 5.43 in — Jun 29, 1996
July 99.0°F — Jul 12, 1925 17.1°F — Jul 30, 1927 3.73 in — Jul 20, 2011
August 100.0°F — Aug 7, 1930 33.1°F — Aug 1, 1947 2.93 in — Aug 1, 1987
September 90.0°F — Sep 1, 1929 23.0°F — Sep 28, 1942 3.49 in — Sep 10, 1961
October 77.0°F — Oct 15, 1962 6.1°F — Oct 26, 1936 2.55 in — Oct 9, 1968
November 66.9°F — Nov 5, 1975 -14.1°F — Nov 30, 1976 2.98 in — Nov 12, 2021
December 69.1°F — Dec 7, 1913 -34.1°F — Dec 26, 1917 1.78 in — Dec 16, 1984

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