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Weather in Portsmouth °F°CAverage monthly temperatures
Jan
31°
19°

Feb
40°
27°

Mar
41°
29°

Apr
51°
35°

May
69°
50°

Jun
74°
55°

Jul
82°
63°

Aug
81°
65°

Sep
72°
57°

Oct
56°
43°

Nov
42°
32°

Dec
38°
25°

Sunny or mostly sunny days
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