All-time weather records — Ansonia, CT
Climate change signal in Ansonia
of Ansonia's all-time daily heat records were set in the last decade (198 of 366 records since 2015).
of all-time daily cold records were set in the last decade (158 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 | # |
|---|---|---|---|---|
| 1960s | · | · | ||
| 1970s | · | · | ||
| 1980s | · | · | ||
| 1990s | · | · | ||
| 2000s | · | · | ||
| 2010s | 357 | 357 | ||
| 2020s | 9 | 9 |
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 2020. Period of observation: 1966-2026.
Records by month
| Month | Hottest day | Coldest day | Wettest day |
|---|---|---|---|
| January | 79.0°F — Jan 11, 2012 | -9.0°F — Jan 8, 2018 | 3.72 in — Jan 10, 2024 |
| February | 73.0°F — Feb 22, 2018 | -9.0°F — Feb 14, 2016 | 3.24 in — Feb 9, 2013 |
| March | 75.0°F — Mar 18, 2011 | 3.9°F — Mar 1, 2015 | 4.00 in — Mar 8, 2013 |
| April | 84.0°F — Apr 17, 2012 | 19.9°F — Apr 6, 2016 | 6.40 in — Apr 16, 2007 |
| May | 90.0°F — May 29, 2012 | 19.0°F — May 4, 2013 | 3.60 in — May 13, 2006 |
| June | 96.1°F — Jun 13, 2017 | 44.1°F — Jun 1, 2014 | 9.35 in — Jun 6, 1982 |
| July | 99.0°F — Jul 23, 2011 | 50.0°F — Jul 18, 2017 | 5.80 in — Jul 14, 2018 |
| August | 93.9°F — Aug 14, 2016 | 3.9°F — Aug 20, 2017 | 5.10 in — Aug 28, 1971 |
| September | 95.0°F — Sep 9, 2015 | 0.0°F — Sep 1, 2013 | 6.08 in — Sep 26, 2018 |
| October | 84.0°F — Oct 11, 2011 | 23.0°F — Oct 19, 2015 | 6.24 in — Oct 20, 1996 |
| November | 75.9°F — Nov 7, 2015 | 12.9°F — Nov 25, 2013 | 3.27 in — Nov 21, 1986 |
| December | 64.0°F — Dec 2, 2014 | 0.0°F — Dec 10, 2014 | 3.25 in — Dec 18, 2023 |
Click a month to see every daily record for that month in Ansonia.