All-time weather records — New Witten, SD
Climate change signal in New Witten
of New Witten's all-time daily heat records were set in the last decade (152 of 366 records since 2015).
of all-time daily cold records were set in the last decade (115 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 | # |
|---|---|---|---|---|
| 1990s | 24 | 27 | ||
| 2000s | 124 | 155 | ||
| 2010s | 120 | 121 | ||
| 2020s | 98 | 63 |
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 1998, the latest in 2026. Period of observation: 1997-2026.
Records by month
| Month | Hottest day | Coldest day | Wettest day |
|---|---|---|---|
| January | 72.0°F — Jan 8, 2002 | -26.9°F — Jan 1, 2018 | 0.85 in — Jan 21, 2018 |
| February | 80.1°F — Feb 28, 2006 | -20.7°F — Feb 14, 2021 | 0.65 in — Mar 1, 2004 |
| March | 90.0°F — Mar 18, 2012 | -20.9°F — Mar 11, 1998 | 1.66 in — Mar 27, 2004 |
| April | 93.9°F — Apr 1, 2012 | 7.2°F — Apr 15, 2018 | 2.84 in — Apr 16, 2024 |
| May | 100.0°F — May 5, 2004 | 24.3°F — May 3, 2013 | 2.05 in — May 17, 2019 |
| June | 109.0°F — Jun 29, 2022 | 34.0°F — Jun 3, 1998 | 4.80 in — Jun 8, 2004 |
| July | 115.0°F — Jul 25, 2003 | -0.8°F — Jul 13, 2010 | 2.93 in — Jul 24, 2020 |
| August | 111.9°F — Aug 29, 2012 | -0.8°F — Aug 11, 2009 | 3.43 in — Aug 12, 2017 |
| September | 107.1°F — Sep 2, 2023 | 30.9°F — Sep 24, 2000 | 2.41 in — Sep 17, 2025 |
| October | 96.1°F — Oct 4, 2011 | 8.2°F — Oct 26, 2020 | 1.47 in — Oct 4, 2013 |
| November | 84.9°F — Nov 7, 1999 | -3.8°F — Nov 16, 2014 | 0.63 in — Nov 9, 1998 |
| December | 73.9°F — Dec 1, 1998 | -21.8°F — Dec 31, 2017 | 1.28 in — Dec 13, 2022 |
Click a month to see every daily record for that month in New Witten.