All-time weather records — Seneca, SC

Record high
107.1°F
July 1, 2012
Record low
6.3°F
December 24, 2022
Wettest day
5.38 in
September 7, 2004

Climate change signal in Seneca

37.4%

of Seneca's all-time daily heat records were set in the last decade (137 of 366 records since 2015).

38.3%

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.