All-time weather records — Cedarburg, WI

Record high
100.0°F
July 18, 2012
Record low
-16.1°F
January 7, 2014
Wettest day
6.75 in
August 10, 2025

Climate change signal in Cedarburg

70.8%

of Cedarburg's all-time daily heat records were set in the last decade (259 of 366 records since 2015).

52.7%

of all-time daily cold records were set in the last decade (193 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
12
35
2010s
218
219
2020s
136
112

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 2009, the latest in 2026. Period of observation: 2009-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 57.9°F — Jan 30, 2013 -16.1°F — Jan 7, 2014 1.38 in — Jan 13, 2024
February 73.9°F — Feb 28, 2024 -11.9°F — Feb 1, 2019 1.91 in — Feb 21, 2011
March 82.9°F — Mar 21, 2012 -5.1°F — Mar 3, 2014 1.51 in — Mar 15, 2024
April 88.0°F — Apr 25, 2009 15.1°F — Apr 1, 2021 2.08 in — Apr 8, 2015
May 95.0°F — May 28, 2018 25.0°F — May 31, 2014 5.25 in — May 18, 2020
June 97.0°F — Jun 15, 2022 16.0°F — Jun 22, 2014 1.95 in — Jun 4, 2025
July 100.0°F — Jul 18, 2012 41.0°F — Jul 30, 2013 3.25 in — Jul 15, 2010
August 99.0°F — Aug 24, 2023 39.0°F — Aug 20, 2013 6.75 in — Aug 10, 2025
September 95.0°F — Sep 4, 2023 35.1°F — Sep 19, 2012 2.20 in — Sep 12, 2022
October 87.1°F — Oct 4, 2025 25.0°F — Oct 31, 2020 3.25 in — Oct 2, 2019
November 77.0°F — Nov 11, 2022 9.0°F — Nov 24, 2013 2.10 in — Nov 5, 2022
December 66.0°F — Dec 16, 2021 -9.9°F — Dec 24, 2022 1.55 in — Dec 29, 2015

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