All-time weather records — Marathon, FL
Climate change signal in Marathon
of Marathon's all-time daily heat records were set in the last decade (215 of 366 records since 2015).
of all-time daily cold records were set in the last decade (69 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 | 12 | 32 | ||
| 2000s | 106 | 176 | ||
| 2010s | 150 | 117 | ||
| 2020s | 98 | 41 |
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 1998, the latest in 2024. Period of observation: 1998-2026.
Records by month
| Month | Hottest day | Coldest day | Wettest day |
|---|---|---|---|
| January | 88.0°F — Jan 3, 2017 | 39.0°F — Jan 11, 2010 | 1.49 in — Jan 15, 2016 |
| February | 89.1°F — Feb 24, 2019 | 43.0°F — Feb 5, 2009 | 2.45 in — Feb 13, 2019 |
| March | 90.0°F — Mar 16, 2019 | 37.0°F — Mar 29, 2009 | 2.69 in — Mar 22, 2024 |
| April | 93.9°F — Apr 16, 2020 | 55.9°F — Apr 1, 2003 | 3.54 in — Apr 29, 2012 |
| May | 96.1°F — May 14, 2019 | 64.0°F — May 8, 2016 | 7.08 in — May 20, 2024 |
| June | 105.1°F — Jun 15, 2000 | 64.9°F — Jun 7, 2008 | 5.47 in — Jun 3, 2022 |
| July | 99.0°F — Jul 13, 2023 | 1.2°F — Jul 21, 2006 | 3.34 in — Jul 21, 2006 |
| August | 102.9°F — Aug 19, 2010 | 70.0°F — Aug 18, 2007 | 7.15 in — Aug 26, 2005 |
| September | 97.0°F — Sep 16, 2023 | 71.1°F — Sep 27, 2016 | 8.13 in — Sep 12, 2020 |
| October | 93.0°F — Oct 8, 2023 | 57.9°F — Oct 29, 2008 | 8.28 in — Oct 12, 2010 |
| November | 104.0°F — Nov 20, 1998 | 1.9°F — Nov 20, 1998 | 6.68 in — Nov 15, 2023 |
| December | 88.0°F — Dec 1, 2016 | 44.1°F — Dec 14, 2010 | 3.25 in — Dec 6, 2015 |
Click a month to see every daily record for that month in Marathon.