Portsmouth Weather
Change Location
Records and Averages
| Month | Avg. High | Avg. Low | Avg. Precip | Rec. High | Rec. Low |
|---|---|---|---|---|---|
| January | 34.0° F | 15.0° F | 4.20 in | 62.0° F(01/16/1995) | -26.0° F (01/22/1984) |
| February | 37.0° F | 18.0° F | 3.38 in | 72.0° F(02/22/1997) | -15.0° F (02/11/1983) |
| March | 46.0° F | 26.0° F | 4.36 in | 89.0° F(03/31/1998) | -6.0° F (03/04/1982) |
| April | 56.0° F | 34.0° F | 4.33 in | 94.0° F(04/17/2002) | 13.0° F (04/12/1976) |
| May | 68.0° F | 44.0° F | 3.63 in | 94.0° F(05/31/1987) | 15.0° F (05/09/1985) |
| June | 77.0° F | 53.0° F | 3.66 in | 96.0° F(06/28/1991) | 33.0° F (06/09/1983) |
| July | 83.0° F | 59.0° F | 3.44 in | 101.0° F(07/14/1995) | 38.0° F (07/02/1978) |
| August | 81.0° F | 57.0° F | 3.47 in | 104.0° F(08/02/1975) | 33.0° F (08/30/1982) |
| September | 72.0° F | 50.0° F | 3.92 in | 95.0° F(09/09/2002) | 23.0° F (09/30/1978) |
| October | 61.0° F | 39.0° F | 4.40 in | 86.0° F(10/02/1982) | 17.0° F (10/28/1976) |
| November | 50.0° F | 32.0° F | 4.86 in | 78.0° F(11/05/1994) | -6.0° F (11/24/1989) |
| December | 39.0° F | 21.0° F | 4.48 in | 75.0° F(12/07/1998) | -17.0° F (12/24/1989) |
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