All-time weather records — Waupun, WI

Record high
100.9°F
July 6, 2012
Record low
-35.0°F
January 31, 2019
Wettest day
5.32 in
October 2, 2019

Climate change signal in Waupun

54.4%

of Waupun's all-time daily heat records were set in the last decade (199 of 366 records since 2015).

50.8%

of all-time daily cold records were set in the last decade (186 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
60
80
2010s
191
201
2020s
115
85

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 2006, the latest in 2026. Period of observation: 2005-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 55.9°F — Jan 31, 2025 -35.0°F — Jan 31, 2019 1.18 in — Jan 29, 2006
February 70.0°F — Feb 28, 2024 -35.0°F — Feb 1, 2019 1.08 in — Feb 24, 2019
March 82.9°F — Mar 22, 2012 -15.0°F — Mar 4, 2019 2.05 in — Mar 7, 2026
April 86.0°F — Apr 30, 2007 10.0°F — Apr 5, 2018 2.91 in — Apr 13, 2014
May 93.9°F — May 28, 2018 25.0°F — May 9, 2020 2.62 in — May 14, 2009
June 93.9°F — Jun 6, 2011 39.0°F — Jun 3, 2019 4.11 in — Jun 9, 2008
July 100.9°F — Jul 6, 2012 48.0°F — Jul 16, 2014 3.70 in — Jul 15, 2010
August 95.0°F — Aug 1, 2006 39.9°F — Aug 31, 2009 3.35 in — Aug 19, 2007
September 93.9°F — Sep 11, 2013 32.0°F — Sep 15, 2007 5.05 in — Sep 7, 2016
October 87.1°F — Oct 7, 2007 19.9°F — Oct 11, 2009 5.32 in — Oct 2, 2019
November 73.9°F — Nov 10, 2020 1.0°F — Nov 21, 2014 1.56 in — Nov 5, 2022
December 64.0°F — Dec 16, 2021 -20.9°F — Dec 30, 2013 1.54 in — Dec 14, 2015

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