All-time weather records — Eureka, SD

Record high
114.1°F
July 6, 1936
Record low
-45.0°F
December 10, 1917
Wettest day
6.73 in
June 18, 1964

Climate change signal in Eureka

7.9%

of Eureka's all-time daily heat records were set in the last decade (29 of 366 records since 2015).

6%

of all-time daily cold records were set in the last decade (22 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
4
9
1900s
4
5
1910s
32
85
1920s
20
51
1930s
74
46
1940s
34
25
1950s
34
24
1960s
25
29
1970s
21
24
1980s
37
22
1990s
19
15
2000s
17
4
2010s
27
17
2020s
18
10

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 1897, the latest in 2026. Period of observation: 1877-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 57.9°F — Jan 23, 1981 -44.0°F — Jan 13, 1916 1.16 in — Jan 24, 1950
February 66.9°F — Feb 25, 1958 -44.0°F — Feb 1, 1917 1.89 in — Feb 26, 2000
March 84.9°F — Mar 23, 1910 -29.0°F — Mar 4, 1917 1.85 in — Mar 18, 1968
April 96.1°F — Apr 21, 1980 -8.0°F — Apr 4, 2018 2.44 in — Apr 28, 1989
May 107.1°F — May 28, 1934 12.0°F — May 2, 1967 3.96 in — May 18, 2018
June 107.1°F — Jun 24, 1988 28.9°F — Jun 1, 1917 6.73 in — Jun 18, 1964
July 114.1°F — Jul 6, 1936 32.0°F — Jul 3, 1917 3.47 in — Jul 16, 1927
August 109.0°F — Aug 15, 1988 28.9°F — Aug 26, 1914 3.02 in — Aug 25, 1960
September 107.1°F — Sep 7, 1931 15.1°F — Sep 30, 1974 2.16 in — Sep 18, 1946
October 93.9°F — Oct 1, 1897 -6.0°F — Oct 29, 1925 2.92 in — Oct 9, 1982
November 78.1°F — Nov 2, 1965 -23.1°F — Nov 14, 1940 1.49 in — Nov 5, 1922
December 64.0°F — Dec 2, 2021 -45.0°F — Dec 10, 1917 0.99 in — Dec 26, 2016

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