October weather in Portsmouth, NH
The average temperature in Portsmouth in October is °F (°F–°F). Average precipitation: 4.83 inches.
October is a fall month in Portsmouth, and is cooler than the annual average of 0°F. Expect about 10 days with precipitation. Daylight averages about 10h 47m.
Avg High
°F
Avg Low
°F
Precipitation
4.83 in
Snow
0.1 in
October records in Portsmouth
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| October 1 | — | — | 2.23 in (2015) |
| October 2 | — | — | 1.06 in (2010) |
| October 3 | — | — | 1.10 in (2011) |
| October 4 | — | — | 0.54 in (2009) |
| October 5 | — | — | 1.13 in (2011) |
| October 6 | — | — | 1.27 in (1995) |
| October 7 | — | — | 0.97 in (2010) |
| October 8 | — | — | 1.16 in (2005) |
| October 9 | — | — | 4.05 in (2005) |
| October 10 | — | — | 1.61 in (1992) |
| October 11 | — | — | 2.51 in (1998) |
| October 12 | — | — | 1.79 in (2006) |
| October 13 | — | — | 1.01 in (2003) |
| October 14 | — | — | 2.07 in (2022) |
| October 15 | — | — | 2.50 in (2010) |
| October 16 | — | — | 1.49 in (2004) |
| October 17 | — | — | 2.31 in (2002) |
| October 18 | — | — | 1.55 in (2022) |
| October 19 | — | — | 1.03 in (2000) |
| October 20 | — | — | 1.64 in (2011) |
| October 21 | — | — | 8.75 in (1996) |
| October 22 | — | — | 3.09 in (1996) |
| October 23 | — | — | 1.20 in (2019) |
| October 24 | — | — | 0.98 in (2014) |
| October 25 | — | — | 1.18 in (2005) |
| October 26 | — | — | 1.26 in (2008) |
| October 27 | — | — | 1.58 in (2021) |
| October 28 | — | — | 1.38 in (2016) |
| October 29 | — | — | 1.90 in (2006) |
| October 30 | — | — | 2.08 in (2017) |
| October 31 | — | — | 5.43 in (2021) |