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What is the weather like in Portsmouth, New HampshirePortsmouth, New Hampshire monthly and yearly climate averages.

Portsmouth, New Hampshire Climate Averages

Monthly and yearly weather averages for Portsmouth, New HampshireWeather almanac for Portsmouth, NH. Portsmouth monthly weather averages.
Lat: 43.07N, Lon: 70.76W
Wx Zone: NHZ014
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Portsmouth Monthly Averages

     <-- 12 Month Weather Scroll -->
January
February
March
April
May
June
July
August
September
October
November
December
Hi 31°F Lo 21°F Hi 34°F Lo 22°F Hi 40°F Lo 29°F Hi 51°F Lo 39°F Hi 61°F Lo 48°F Hi 69°F Lo 55°F Hi 76°F Lo 62°F Hi 76°F Lo 62°F Hi 69°F Lo 56°F Hi 58°F Lo 47°F Hi 48°F Lo 37°F Hi 38°F Lo 28°F
12 mph 12 mph 11 mph 10 mph 8 mph 7 mph 7 mph 7 mph 8 mph 9 mph 10 mph 11 mph
2 in 2 in 2.2 in 2.1 in 1.8 in 2.5 in 2.1 in 2 in 1.5 in 2.4 in 2.3 in 2.2 in
79% 79% 78% 75% 79% 80% 80% 79% 79% 78% 75% 78%
44% 47% 50% 45% 45% 40% 31% 29% 33% 41% 39% 47%
30.5 in 30.5 in 30.5 in 30.4 in 30.5 in 30.4 in 30.4 in 30.4 in 30.5 in 30.5 in 30.5 in 30.5 in
16 14 14 13 15 13 15 16 17 16 17 15
7 8 12 14 15 15 14 12 11 12 10 12
9 8 7 1 0 0 0 0 0 0 2 7
1 2 2 3 5 6 5 5 4 2 1 1
2 2 2 3 5 5 5 6 4 3 2 2
155 133 179 251 267 282 327 331 257 190 162 147
Month
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Average Snow Days
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Average UV Index
Avg. Hours of Sun