All-time weather records — Cosmos, MN

Record high
104.0°F
July 31, 1988
Record low
-36.9°F
January 9, 1977
Wettest day
6.08 in
June 17, 1957

Climate change signal in Cosmos

13.9%

of Cosmos's all-time daily heat records were set in the last decade (51 of 366 records since 2015).

5.7%

of all-time daily cold records were set in the last decade (21 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
2
8
1940s
37
51
1950s
30
43
1960s
55
62
1970s
39
51
1980s
59
50
1990s
49
36
2000s
26
29
2010s
30
25
2020s
39
11

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 1908, the latest in 2026. Period of observation: 1908-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 60.1°F — Jan 24, 1981 -36.9°F — Jan 9, 1977 1.15 in — Jan 6, 1997
February 60.1°F — Feb 18, 2017 -36.9°F — Feb 2, 1996 2.45 in — Feb 15, 1993
March 81.0°F — Mar 30, 1968 -32.1°F — Mar 1, 1962 1.65 in — Mar 29, 1981
April 93.0°F — Apr 21, 1980 -0.9°F — Apr 1, 1975 2.40 in — Apr 20, 1941
May 97.0°F — May 15, 2001 19.0°F — May 3, 1967 3.28 in — May 5, 1950
June 100.9°F — Jun 6, 2021 26.1°F — Jun 2, 2000 6.08 in — Jun 17, 1957
July 104.0°F — Jul 31, 1988 1.9°F — Jul 24, 2014 4.06 in — Jul 8, 1955
August 104.0°F — Aug 1, 1988 37.0°F — Aug 21, 2004 6.00 in — Aug 28, 1960
September 98.1°F — Sep 7, 1978 14.0°F — Sep 24, 2001 3.42 in — Sep 8, 1991
October 90.0°F — Oct 2, 1953 9.0°F — Oct 7, 2001 3.36 in — Oct 3, 2017
November 78.1°F — Nov 9, 1999 -17.0°F — Nov 30, 1964 1.82 in — Nov 19, 2024
December 62.1°F — Dec 2, 1998 -34.1°F — Dec 19, 1983 1.50 in — Dec 25, 2023

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