All-time weather records — Ironwood, MI
Climate change signal in Ironwood
of Ironwood's all-time daily heat records were set in the last decade (366 of 366 records since 2015).
of all-time daily cold records were set in the last decade (366 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 | # |
|---|---|---|---|---|
| 2010s | 34 | 88 | ||
| 2020s | 332 | 278 |
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 2018, the latest in 2026. Period of observation: 2018-2026.
Records by month
| Month | Hottest day | Coldest day | Wettest day |
|---|---|---|---|
| January | 45.0°F — Jan 5, 2019 | -27.9°F — Jan 22, 2025 | 0.58 in — Jan 19, 2020 |
| February | 57.0°F — Feb 28, 2024 | -27.0°F — Feb 1, 2019 | 0.69 in — Feb 24, 2019 |
| March | 64.9°F — Mar 15, 2025 | -18.0°F — Mar 4, 2019 | 0.96 in — Mar 11, 2021 |
| April | 79.0°F — Apr 6, 2021 | 5.0°F — Apr 7, 2026 | 1.38 in — Apr 29, 2020 |
| May | 87.1°F — May 14, 2022 | 21.9°F — May 8, 2020 | 1.94 in — May 22, 2024 |
| June | 93.9°F — Jun 21, 2022 | 30.9°F — Jun 3, 2019 | 1.65 in — Jun 24, 2019 |
| July | 90.0°F — Jul 1, 2020 | 39.0°F — Jul 1, 2024 | 3.04 in — Jul 4, 2022 |
| August | 91.9°F — Aug 27, 2024 | 35.1°F — Aug 27, 2023 | 1.30 in — Aug 10, 2020 |
| September | 86.0°F — Sep 6, 2023 | 27.0°F — Sep 18, 2020 | 1.55 in — Sep 6, 2023 |
| October | 84.9°F — Oct 2, 2023 | 7.0°F — Oct 27, 2020 | 1.22 in — Oct 1, 2019 |
| November | 73.0°F — Nov 3, 2022 | -2.9°F — Nov 18, 2018 | 1.73 in — Nov 10, 2022 |
| December | 55.9°F — Dec 16, 2021 | -18.0°F — Dec 14, 2024 | 1.80 in — Dec 1, 2019 |
Click a month to see every daily record for that month in Ironwood.