All-time weather records — Dayton, WY
Climate change signal in Dayton
of Dayton's all-time daily heat records were set in the last decade (239 of 366 records since 2015).
of all-time daily cold records were set in the last decade (211 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 | # |
|---|---|---|---|---|
| 1950s | · | · | ||
| 1990s | · | · | ||
| 2000s | 49 | 72 | ||
| 2010s | 147 | 204 | ||
| 2020s | 170 | 90 |
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 2006, the latest in 2026. Period of observation: 1951-2026.
Records by month
| Month | Hottest day | Coldest day | Wettest day |
|---|---|---|---|
| January | 68.0°F — Jan 27, 2015 | -35.0°F — Jan 13, 2024 | 1.50 in — Jan 28, 2023 |
| February | 75.9°F — Feb 5, 2026 | -38.0°F — Feb 19, 2025 | 14.00 in — Feb 27, 2001 |
| March | 82.0°F — Mar 27, 2025 | -27.0°F — Mar 4, 2019 | 1.93 in — Mar 11, 2014 |
| April | 84.9°F — Apr 11, 2025 | -13.0°F — Apr 24, 2013 | 1.87 in — Apr 22, 1958 |
| May | 95.0°F — May 29, 2014 | 17.1°F — May 7, 2010 | 2.67 in — May 25, 2015 |
| June | 107.1°F — Jun 16, 2021 | 28.0°F — Jun 7, 2009 | 1.99 in — Jun 8, 1993 |
| July | 104.0°F — Jul 20, 2021 | 24.1°F — Jul 28, 2022 | 2.69 in — Jul 20, 1997 |
| August | 102.0°F — Aug 19, 2025 | 28.0°F — Aug 27, 2022 | 2.56 in — Aug 5, 1997 |
| September | 102.0°F — Sep 7, 2022 | 19.0°F — Sep 12, 2014 | 1.70 in — Sep 25, 2016 |
| October | 90.0°F — Oct 2, 2011 | -9.0°F — Oct 26, 2020 | 1.45 in — Oct 4, 2013 |
| November | 79.0°F — Nov 15, 2025 | -17.0°F — Nov 24, 2010 | 4.00 in — Nov 16, 2000 |
| December | 75.9°F — Dec 2, 2021 | -38.9°F — Dec 18, 2016 | 1.60 in — Dec 25, 2014 |
Click a month to see every daily record for that month in Dayton.