All-time weather records — Guymon, OK
Climate change signal in Guymon
of Guymon's all-time daily heat records were set in the last decade (164 of 366 records since 2015).
of all-time daily cold records were set in the last decade (125 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 | 7 | 26 | ||
| 2000s | 118 | 144 | ||
| 2010s | 141 | 129 | ||
| 2020s | 100 | 67 |
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 1999, the latest in 2026. Period of observation: 1998-2026.
Records by month
| Month | Hottest day | Coldest day | Wettest day |
|---|---|---|---|
| January | 82.9°F — Jan 7, 2006 | -9.8°F — Jan 21, 2025 | 1.23 in — Jan 15, 2017 |
| February | 93.0°F — Feb 10, 2017 | -13.9°F — Feb 15, 2021 | 0.76 in — Feb 3, 2010 |
| March | 102.0°F — Mar 26, 2026 | 1.2°F — Mar 3, 2014 | 1.68 in — Mar 13, 2021 |
| April | 99.0°F — Apr 23, 2006 | 19.2°F — Apr 7, 2018 | 1.68 in — Apr 16, 2016 |
| May | 106.0°F — May 29, 2011 | 28.2°F — May 3, 2013 | 2.58 in — May 17, 2001 |
| June | 113.0°F — Jun 26, 2011 | 39.9°F — Jun 8, 2007 | 4.48 in — Jun 19, 2024 |
| July | 109.9°F — Jul 9, 2009 | 51.1°F — Jul 11, 1999 | 2.31 in — Jul 10, 2008 |
| August | 109.0°F — Aug 8, 2025 | 50.0°F — Aug 26, 2010 | 3.02 in — Aug 21, 2019 |
| September | 106.0°F — Sep 4, 2000 | 33.1°F — Sep 25, 2000 | 1.99 in — Sep 23, 2017 |
| October | 98.1°F — Oct 16, 2016 | 11.1°F — Oct 31, 2019 | 1.98 in — Oct 8, 1999 |
| November | 89.1°F — Nov 2, 2005 | 2.1°F — Nov 12, 2019 | 1.61 in — Nov 8, 2024 |
| December | 87.1°F — Dec 14, 2002 | -10.8°F — Dec 18, 2016 | 2.72 in — Dec 29, 2006 |
Click a month to see every daily record for that month in Guymon.