All-time weather records — Hillrose, CO
Climate change signal in Hillrose
of Hillrose's all-time daily heat records were set in the last decade (250 of 366 records since 2015).
of all-time daily cold records were set in the last decade (258 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 | # |
|---|---|---|---|---|
| 1990s | · | · | ||
| 2000s | · | · | ||
| 2010s | 210 | 230 | ||
| 2020s | 156 | 136 |
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: 1993-2026.
Records by month
| Month | Hottest day | Coldest day | Wettest day |
|---|---|---|---|
| January | 71.1°F — Jan 10, 2018 | -31.0°F — Jan 16, 2024 | 0.69 in — Jan 28, 1995 |
| February | 79.0°F — Feb 3, 2020 | -27.0°F — Feb 5, 2014 | 0.49 in — Feb 10, 1998 |
| March | 91.0°F — Mar 26, 2026 | -20.0°F — Mar 4, 2019 | 1.42 in — Mar 19, 2003 |
| April | 89.1°F — Apr 12, 2023 | 3.0°F — Apr 11, 2013 | 2.40 in — Apr 24, 2007 |
| May | 97.0°F — May 23, 2012 | 19.9°F — May 2, 2019 | 2.61 in — May 25, 2011 |
| June | 111.0°F — Jun 27, 2012 | 35.1°F — Jun 2, 2013 | 3.06 in — Jun 25, 2018 |
| July | 105.1°F — Jul 1, 2012 | 42.1°F — Jul 1, 2018 | 2.26 in — Jul 14, 2011 |
| August | 104.0°F — Aug 29, 2012 | 37.9°F — Aug 25, 2016 | 2.55 in — Aug 25, 2000 |
| September | 104.0°F — Sep 9, 2022 | 28.9°F — Sep 29, 2020 | 1.80 in — Sep 23, 2013 |
| October | 93.9°F — Oct 1, 2023 | -11.0°F — Oct 27, 2020 | 1.18 in — Oct 22, 2009 |
| November | 82.0°F — Nov 3, 2025 | -16.1°F — Nov 13, 2014 | 0.90 in — Nov 9, 2024 |
| December | 75.9°F — Dec 3, 2021 | -27.0°F — Dec 23, 2022 | 0.86 in — Dec 21, 2006 |
Click a month to see every daily record for that month in Hillrose.