All-time weather records — Calumet, IA

Record high
109.9°F
July 22, 1901
Record low
-38.0°F
February 9, 1899
Wettest day
7.70 in
August 23, 1973

Climate change signal in Calumet

13.7%

of Calumet's all-time daily heat records were set in the last decade (50 of 366 records since 2015).

7.4%

of all-time daily cold records were set in the last decade (27 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
24
52
1900s
25
22
1930s
33
11
1940s
29
34
1950s
32
42
1960s
37
46
1970s
26
43
1980s
49
28
1990s
19
35
2000s
19
13
2010s
34
21
2020s
39
19

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 1895, the latest in 2026. Period of observation: 1895-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 64.0°F — Jan 24, 1981 -29.9°F — Jan 15, 1972 5.00 in — Jan 20, 2012
February 70.0°F — Feb 26, 1896 -38.0°F — Feb 9, 1899 2.00 in — Feb 1, 1904
March 88.0°F — Mar 21, 2026 -20.0°F — Mar 2, 2019 3.00 in — Mar 29, 1900
April 93.0°F — Apr 21, 1980 1.9°F — Apr 4, 2018 4.95 in — Apr 29, 1947
May 100.0°F — May 25, 1967 7.0°F — May 14, 1901 4.75 in — May 26, 2013
June 102.9°F — Jun 20, 1988 34.0°F — Jun 4, 2004 4.80 in — Jun 30, 2017
July 109.9°F — Jul 22, 1901 39.9°F — Jul 9, 1895 7.00 in — Jul 14, 1900
August 100.9°F — Aug 9, 1947 37.9°F — Aug 20, 1950 7.70 in — Aug 23, 1973
September 100.0°F — Sep 6, 1976 17.1°F — Sep 29, 1899 6.70 in — Sep 15, 2004
October 93.0°F — Oct 5, 1963 8.1°F — Oct 29, 1895 2.70 in — Oct 17, 1968
November 78.1°F — Nov 16, 1899 -14.1°F — Nov 29, 1897 2.30 in — Nov 26, 1896
December 66.0°F — Dec 6, 1939 -27.9°F — Dec 22, 1989 1.34 in — Dec 27, 2018

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