All-time weather records — Jackson, WI

Record high
102.9°F
July 6, 2012
Record low
-23.1°F
January 31, 2019
Wettest day
5.67 in
August 10, 2025

Climate change signal in Jackson

74.9%

of Jackson's all-time daily heat records were set in the last decade (274 of 366 records since 2015).

55.7%

of all-time daily cold records were set in the last decade (204 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
13
43
2010s
200
231
2020s
153
92

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 2008, the latest in 2026. Period of observation: 2008-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 57.9°F — Jan 9, 2026 -23.1°F — Jan 31, 2019 3.22 in — Jan 13, 2024
February 71.1°F — Feb 28, 2024 -23.1°F — Feb 1, 2019 1.03 in — Feb 21, 2011
March 82.9°F — Mar 22, 2012 -11.0°F — Mar 1, 2014 1.90 in — Mar 16, 2026
April 84.0°F — Apr 14, 2023 3.0°F — Apr 6, 2011 2.30 in — Apr 20, 2023
May 96.1°F — May 28, 2018 28.9°F — May 13, 2013 2.21 in — May 18, 2020
June 99.0°F — Jun 15, 2022 37.0°F — Jun 4, 2009 3.04 in — Jun 16, 2022
July 102.9°F — Jul 6, 2012 46.0°F — Jul 2, 2015 3.99 in — Jul 15, 2010
August 99.0°F — Aug 24, 2023 42.1°F — Aug 31, 2009 5.67 in — Aug 10, 2025
September 93.9°F — Sep 4, 2023 30.9°F — Sep 19, 2012 3.83 in — Sep 12, 2022
October 88.0°F — Oct 4, 2025 18.0°F — Oct 31, 2020 3.42 in — Oct 2, 2019
November 75.9°F — Nov 4, 2015 5.0°F — Nov 21, 2014 2.20 in — Nov 5, 2022
December 66.0°F — Dec 16, 2021 -9.9°F — Dec 19, 2016 1.85 in — Dec 12, 2010

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