All-time weather records — Cottonwood, SD

Record high
117.0°F
July 16, 2006
Record low
-43.1°F
February 9, 1994
Wettest day
5.18 in
August 16, 1930

Climate change signal in Cottonwood

7.4%

of Cottonwood's all-time daily heat records were set in the last decade (27 of 366 records since 2015).

4.1%

of all-time daily cold records were set in the last decade (15 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
·
1
1910s
27
60
1920s
13
36
1930s
82
37
1940s
28
35
1950s
19
24
1960s
18
27
1970s
21
25
1980s
26
39
1990s
33
36
2000s
53
20
2010s
32
15
2020s
14
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 1910, the latest in 2025. Period of observation: 1909-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 80.1°F — Jan 28, 2015 -42.0°F — Jan 12, 1916 2.31 in — Jan 4, 1949
February 80.1°F — Feb 12, 1974 -43.1°F — Feb 9, 1994 1.18 in — Feb 18, 1991
March 88.0°F — Mar 22, 1910 -33.0°F — Mar 11, 1998 1.78 in — Mar 14, 1973
April 95.0°F — Apr 22, 1980 -11.9°F — Apr 2, 1936 2.20 in — Apr 20, 1971
May 105.1°F — May 28, 1934 12.9°F — May 5, 1944 4.00 in — May 26, 1915
June 114.1°F — Jun 18, 1936 30.0°F — Jun 14, 1969 3.04 in — Jun 17, 1948
July 117.0°F — Jul 16, 2006 34.0°F — Jul 30, 1971 2.46 in — Jul 16, 1923
August 113.0°F — Aug 7, 1935 24.1°F — Aug 5, 1909 5.18 in — Aug 16, 1930
September 108.0°F — Sep 5, 2001 10.0°F — Sep 25, 1926 3.30 in — Sep 20, 1955
October 98.1°F — Oct 16, 1910 -14.1°F — Oct 27, 2020 3.03 in — Oct 5, 2013
November 84.9°F — Nov 8, 1999 -29.0°F — Nov 14, 1959 1.36 in — Nov 6, 2008
December 77.0°F — Dec 11, 1939 -41.1°F — Dec 20, 1916 0.80 in — Dec 31, 1924

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