All-time weather records — Rochester, NH
Climate change signal in Rochester
of Rochester's all-time daily heat records were set in the last decade (0 of 365 records since 2015).
of all-time daily cold records were set in the last decade (0 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 | # |
|---|---|---|---|---|
| 1980s | · | · | ||
| 1990s | · | · | ||
| 2000s | · | · | ||
| 2010s | 365 | 366 |
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 2012. Period of observation: 1989-2012.
Records by month
| Month | Hottest day | Coldest day | Wettest day |
|---|---|---|---|
| January | 60.1°F — Jan 2, 2011 | -8.0°F — Jan 24, 2011 | 2.05 in — Jan 24, 1998 |
| February | 60.1°F — Feb 19, 2011 | -2.9°F — Feb 4, 2011 | 3.25 in — Feb 26, 2010 |
| March | 87.1°F — Mar 22, 2012 | 0.0°F — Mar 4, 2011 | 4.00 in — Mar 15, 2010 |
| April | 91.9°F — Apr 17, 2012 | 17.1°F — Apr 5, 2011 | 4.30 in — Apr 16, 2007 |
| May | 91.9°F — May 28, 2011 | 33.1°F — May 1, 2011 | 6.02 in — May 14, 2006 |
| June | 97.0°F — Jun 10, 2011 | 39.9°F — Jun 5, 2011 | 4.72 in — Jun 14, 1998 |
| July | 104.0°F — Jul 23, 2011 | 48.0°F — Jul 10, 2012 | 4.75 in — Jul 14, 1996 |
| August | 96.1°F — Aug 4, 2012 | 48.9°F — Aug 30, 2012 | 5.05 in — Aug 20, 1991 |
| September | 90.0°F — Sep 5, 2011 | 35.1°F — Sep 17, 2011 | 4.90 in — Sep 7, 2008 |
| October | 86.0°F — Oct 10, 2011 | 23.0°F — Oct 31, 2011 | 6.14 in — Oct 21, 1996 |
| November | 70.0°F — Nov 9, 2011 | 18.0°F — Nov 23, 2011 | 2.76 in — Nov 2, 1997 |
| December | 61.0°F — Dec 7, 2011 | 7.0°F — Dec 19, 2011 | 3.05 in — Dec 13, 2010 |
Click a month to see every daily record for that month in Rochester.