All-time weather records — Portsmouth, NH
Record high
°F
January 1,
Record low
°F
January 1,
Wettest day
8.75 in
October 21, 1996
Records by month
| Month | Hottest day | Coldest day | Wettest day |
|---|---|---|---|
| January | — | — | 2.54 in — Jan 10, 2024 |
| February | — | — | 2.61 in — Feb 5, 1995 |
| March | — | — | 4.96 in — Mar 15, 2010 |
| April | — | — | 6.93 in — Apr 16, 2007 |
| May | — | — | 3.80 in — May 15, 2006 |
| June | — | — | 6.60 in — Jun 14, 1998 |
| July | — | — | 2.87 in — Jul 14, 1996 |
| August | — | — | 3.05 in — Aug 22, 1997 |
| September | — | — | 5.85 in — Sep 7, 2008 |
| October | — | — | 8.75 in — Oct 21, 1996 |
| November | — | — | 3.56 in — Nov 15, 1995 |
| December | — | — | 2.91 in — Dec 10, 2014 |
Click a month to see every daily record for that month in Portsmouth.