All-time weather records — Long Lake, SD

Record high
102.0°F
July 7, 2007
Record low
-31.5°F
January 30, 2019
Wettest day
3.64 in
August 10, 2016

Climate change signal in Long Lake

69.1%

of Long Lake's all-time daily heat records were set in the last decade (253 of 366 records since 2015).

56.6%

of all-time daily cold records were set in the last decade (207 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 #
2000s
25
59
2010s
187
195
2020s
154
112

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 2007, the latest in 2026. Period of observation: 2007-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 55.6°F — Jan 5, 2012 -31.5°F — Jan 30, 2019 0.55 in — Jan 28, 2013
February 66.9°F — Feb 27, 2016 -30.3°F — Feb 14, 2021 0.68 in — Feb 9, 2009
March 82.2°F — Mar 18, 2012 -21.5°F — Mar 3, 2019 1.16 in — Mar 5, 2018
April 88.5°F — Apr 23, 2009 -0.2°F — Apr 6, 2018 1.74 in — Apr 29, 2022
May 92.7°F — May 27, 2018 18.9°F — May 3, 2013 2.54 in — May 10, 2015
June 99.0°F — Jun 19, 2023 35.4°F — Jun 2, 2013 3.14 in — Jun 24, 2023
July 102.0°F — Jul 7, 2007 41.7°F — Jul 27, 2013 2.16 in — Jul 27, 2008
August 99.9°F — Aug 20, 2013 39.9°F — Aug 24, 2015 3.64 in — Aug 10, 2016
September 96.1°F — Sep 3, 2007 23.7°F — Sep 22, 2012 1.95 in — Sep 7, 2019
October 91.8°F — Oct 11, 2015 2.3°F — Oct 26, 2020 1.81 in — Oct 14, 2013
November 73.4°F — Nov 4, 2016 -15.2°F — Nov 23, 2010 0.62 in — Nov 25, 2025
December 63.1°F — Dec 1, 2021 -27.8°F — Dec 31, 2017 0.75 in — Dec 25, 2016

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