All-time weather records — Ethan, SD

Record high
114.1°F
July 17, 1936
Record low
-41.1°F
January 12, 1912
Wettest day
5.83 in
April 30, 1942

Climate change signal in Ethan

8.5%

of Ethan's all-time daily heat records were set in the last decade (31 of 366 records since 2015).

3.6%

of all-time daily cold records were set in the last decade (13 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
28
69
1900s
26
43
1910s
32
41
1920s
38
55
1930s
83
34
1940s
20
19
1950s
25
18
1960s
17
21
1970s
4
14
1980s
22
13
1990s
15
10
2000s
13
3
2010s
19
21
2020s
24
5

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 1893, the latest in 2026. Period of observation: 1893-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 69.1°F — Jan 5, 2012 -41.1°F — Jan 12, 1912 1.25 in — Jan 3, 1897
February 73.0°F — Feb 21, 2000 -38.0°F — Feb 2, 1905 2.10 in — Feb 28, 2012
March 93.0°F — Mar 30, 1943 -22.0°F — Mar 3, 2019 2.66 in — Mar 8, 1893
April 98.1°F — Apr 28, 1910 1.9°F — Apr 3, 1936 5.83 in — Apr 30, 1942
May 108.0°F — May 30, 1934 16.0°F — May 2, 1907 5.10 in — May 11, 1920
June 109.0°F — Jun 25, 1936 30.9°F — Jun 7, 1901 4.29 in — Jun 11, 1929
July 114.1°F — Jul 17, 1936 33.1°F — Jul 9, 1895 3.46 in — Jul 6, 1918
August 114.1°F — Aug 4, 1934 12.9°F — Aug 6, 1911 3.58 in — Aug 15, 1977
September 109.0°F — Sep 17, 1895 10.9°F — Sep 30, 1908 5.40 in — Sep 12, 2019
October 96.1°F — Oct 5, 1947 -9.9°F — Oct 29, 1925 3.60 in — Oct 21, 1900
November 84.0°F — Nov 7, 2020 -20.9°F — Nov 14, 1959 1.58 in — Nov 16, 1971
December 72.0°F — Dec 13, 1921 -31.0°F — Dec 22, 1989 1.05 in — Dec 30, 2006

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