All-time weather records — Seneca, SC
Climate change signal in Seneca
of Seneca's all-time daily heat records were set in the last decade (137 of 366 records since 2015).
of all-time daily cold records were set in the last decade (140 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 | 4 | 5 | ||
| 2000s | 128 | 168 | ||
| 2010s | 196 | 109 | ||
| 2020s | 38 | 84 |
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: 1998-2026.
Records by month
| Month | Hottest day | Coldest day | Wettest day |
|---|---|---|---|
| January | 79.0°F — Jan 13, 2017 | 8.2°F — Jan 7, 2014 | 3.93 in — Jan 9, 2024 |
| February | 80.1°F — Feb 4, 2025 | 12.0°F — Feb 1, 2026 | 4.29 in — Feb 6, 2020 |
| March | 89.1°F — Mar 25, 2007 | 19.9°F — Mar 12, 1998 | 3.18 in — Mar 1, 2007 |
| April | 91.0°F — Apr 2, 2012 | 29.1°F — Apr 8, 2007 | 3.22 in — Apr 7, 2014 |
| May | 97.0°F — May 31, 2011 | 39.9°F — May 7, 2020 | 2.40 in — May 9, 2024 |
| June | 102.9°F — Jun 29, 2012 | 48.9°F — Jun 7, 2000 | 2.63 in — Jun 26, 2006 |
| July | 107.1°F — Jul 1, 2012 | 60.1°F — Jul 1, 2008 | 3.69 in — Jul 1, 2003 |
| August | 104.0°F — Aug 3, 2011 | 57.9°F — Aug 7, 2004 | 5.25 in — Aug 6, 2013 |
| September | 102.0°F — Sep 17, 2014 | 46.0°F — Sep 26, 2001 | 5.38 in — Sep 7, 2004 |
| October | 97.0°F — Oct 2, 2019 | 30.0°F — Oct 28, 2001 | 3.05 in — Oct 23, 2017 |
| November | 84.9°F — Nov 3, 2016 | 18.1°F — Nov 22, 2008 | 3.11 in — Nov 12, 2018 |
| December | 79.0°F — Dec 10, 2007 | 6.3°F — Dec 24, 2022 | 2.51 in — Dec 2, 2009 |
Click a month to see every daily record for that month in Seneca.