All-time weather records — West Salem, WI
Climate change signal in West Salem
of West Salem's all-time daily heat records were set in the last decade (156 of 366 records since 2015).
of all-time daily cold records were set in the last decade (136 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 | 149 | 167 | ||
| 2010s | 122 | 127 | ||
| 2020s | 95 | 72 |
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 2000, the latest in 2026. Period of observation: 2000-2026.
Records by month
| Month | Hottest day | Coldest day | Wettest day |
|---|---|---|---|
| January | 57.0°F — Jan 30, 2025 | -31.0°F — Jan 30, 2019 | 1.21 in — Jan 8, 2026 |
| February | 66.0°F — Feb 27, 2024 | -18.9°F — Feb 7, 2021 | 1.05 in — Feb 27, 2023 |
| March | 81.0°F — Mar 17, 2012 | -15.0°F — Mar 4, 2019 | 1.88 in — Mar 31, 2023 |
| April | 87.1°F — Apr 16, 2002 | 9.0°F — Apr 7, 2018 | 1.94 in — Apr 9, 2013 |
| May | 93.0°F — May 27, 2018 | 25.0°F — May 3, 2013 | 2.56 in — May 18, 2000 |
| June | 93.0°F — Jun 24, 2009 | 39.0°F — Jun 1, 2015 | 3.10 in — Jun 26, 2021 |
| July | 96.1°F — Jul 6, 2012 | 46.0°F — Jul 28, 2013 | 3.26 in — Jul 19, 2017 |
| August | 96.1°F — Aug 1, 2006 | 44.1°F — Aug 21, 2004 | 7.59 in — Aug 19, 2007 |
| September | 90.0°F — Sep 7, 2003 | 33.1°F — Sep 15, 2011 | 3.04 in — Sep 23, 2010 |
| October | 84.9°F — Oct 3, 2025 | 18.0°F — Oct 27, 2020 | 2.74 in — Oct 6, 2017 |
| November | 73.0°F — Nov 2, 2022 | 1.9°F — Nov 12, 2019 | 1.55 in — Nov 3, 2024 |
| December | 64.9°F — Dec 15, 2021 | -17.0°F — Dec 18, 2016 | 1.90 in — Dec 13, 2015 |
Click a month to see every daily record for that month in West Salem.