All-time weather records — Helena, AL
Climate change signal in Helena
of Helena's all-time daily heat records were set in the last decade (139 of 366 records since 2015).
of all-time daily cold records were set in the last decade (97 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 | # |
|---|---|---|---|---|
| 2000s | 104 | 147 | ||
| 2010s | 248 | 190 | ||
| 2020s | 14 | 29 |
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 2004, the latest in 2021. Period of observation: 2000-2021.
Records by month
| Month | Hottest day | Coldest day | Wettest day |
|---|---|---|---|
| January | 79.0°F — Jan 13, 2017 | 3.9°F — Jan 30, 2014 | 2.78 in — Jan 2, 2020 |
| February | 82.0°F — Feb 21, 2018 | 14.0°F — Feb 5, 2009 | 3.08 in — Feb 10, 2020 |
| March | 89.1°F — Mar 25, 2007 | 19.9°F — Mar 6, 2015 | 5.39 in — Mar 10, 2010 |
| April | 91.9°F — Apr 18, 2006 | 28.9°F — Apr 8, 2007 | 3.69 in — Apr 19, 2020 |
| May | 97.0°F — May 31, 2016 | 39.0°F — May 4, 2004 | 6.44 in — May 4, 2021 |
| June | 107.1°F — Jun 30, 2012 | 52.0°F — Jun 2, 2012 | 3.37 in — Jun 19, 2021 |
| July | 105.1°F — Jul 1, 2012 | 55.9°F — Jul 30, 2014 | 4.77 in — Jul 31, 2012 |
| August | 107.1°F — Aug 15, 2007 | 53.1°F — Aug 14, 2004 | 2.59 in — Aug 12, 2004 |
| September | 100.9°F — Sep 9, 2019 | 46.0°F — Sep 29, 2006 | 6.64 in — Sep 16, 2004 |
| October | 102.0°F — Oct 3, 2019 | 28.0°F — Oct 29, 2008 | 3.01 in — Oct 25, 2019 |
| November | 88.0°F — Nov 1, 2016 | 18.0°F — Nov 19, 2014 | 3.88 in — Nov 16, 2014 |
| December | 80.1°F — Dec 10, 2007 | 14.0°F — Dec 14, 2010 | 2.77 in — Dec 8, 2018 |
Click a month to see every daily record for that month in Helena.