All-time weather records — South Dayton, NY

Record high
100.0°F
July 21, 2011
Record low
-18.0°F
February 21, 2015
Wettest day
7.27 in
August 10, 2009

Climate change signal in South Dayton

66.4%

of South Dayton's all-time daily heat records were set in the last decade (243 of 366 records since 2015).

60.1%

of all-time daily cold records were set in the last decade (220 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
·
·
2010s
243
257
2020s
123
109

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 2011, the latest in 2026. Period of observation: 2003-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 63.0°F — Jan 12, 2020 -16.1°F — Jan 23, 2011 1.51 in — Jan 17, 2022
February 72.0°F — Feb 25, 2017 -18.0°F — Feb 21, 2015 1.82 in — Feb 18, 2022
March 82.0°F — Mar 21, 2012 -13.0°F — Mar 1, 2014 2.99 in — Mar 2, 2018
April 87.1°F — Apr 28, 2017 10.0°F — Apr 5, 2016 2.05 in — Apr 4, 2005
May 96.1°F — May 31, 2011 25.0°F — May 9, 2020 2.15 in — May 14, 2014
June 93.0°F — Jun 8, 2011 39.0°F — Jun 2, 2025 2.00 in — Jun 12, 2009
July 100.0°F — Jul 21, 2011 7.0°F — Jul 24, 2023 2.53 in — Jul 3, 2021
August 93.0°F — Aug 5, 2012 43.0°F — Aug 30, 2025 7.27 in — Aug 10, 2009
September 90.0°F — Sep 3, 2011 33.1°F — Sep 20, 2020 4.53 in — Sep 9, 2004
October 82.9°F — Oct 2, 2019 24.1°F — Oct 30, 2011 2.46 in — Oct 21, 2016
November 79.0°F — Nov 10, 2020 6.1°F — Nov 22, 2018 2.53 in — Nov 6, 2017
December 66.9°F — Dec 15, 2015 -7.1°F — Dec 28, 2017 1.71 in — Dec 15, 2019

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