All-time weather records — Homer, IL
Climate change signal in Homer
of Homer's all-time daily heat records were set in the last decade (274 of 366 records since 2015).
of all-time daily cold records were set in the last decade (257 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 | 172 | 202 | ||
| 2020s | 194 | 164 |
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: 2001-2026.
Records by month
| Month | Hottest day | Coldest day | Wettest day |
|---|---|---|---|
| January | 64.0°F — Jan 22, 2017 | -15.0°F — Jan 31, 2019 | 2.12 in — Jan 11, 2020 |
| February | 75.0°F — Feb 27, 2024 | -11.0°F — Feb 12, 2014 | 4.77 in — Feb 21, 2018 |
| March | 89.1°F — Mar 27, 2026 | -6.0°F — Mar 6, 2015 | 2.02 in — Mar 27, 2004 |
| April | 87.1°F — Apr 4, 2012 | 19.0°F — Apr 3, 2018 | 2.63 in — Apr 19, 2013 |
| May | 95.0°F — May 29, 2018 | 28.0°F — May 10, 2020 | 2.01 in — May 31, 2015 |
| June | 100.0°F — Jun 15, 2022 | 46.0°F — Jun 11, 2024 | 4.99 in — Jun 8, 2015 |
| July | 100.0°F — Jul 6, 2012 | 50.0°F — Jul 2, 2024 | 3.80 in — Jul 10, 2024 |
| August | 100.0°F — Aug 17, 2025 | 46.9°F — Aug 26, 2025 | 3.61 in — Aug 30, 2022 |
| September | 98.1°F — Sep 2, 2011 | 37.9°F — Sep 24, 2012 | 4.23 in — Sep 8, 2018 |
| October | 91.0°F — Oct 4, 2025 | 23.0°F — Oct 31, 2023 | 2.18 in — Oct 25, 2021 |
| November | 79.0°F — Nov 2, 2016 | 3.9°F — Nov 13, 2019 | 2.49 in — Nov 22, 2007 |
| December | 72.0°F — Dec 4, 2012 | -13.0°F — Dec 15, 2025 | 2.63 in — Dec 27, 2015 |
Click a month to see every daily record for that month in Homer.