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Portsmouth
City Climate
Learn more information about current Portsmouth, New Hampshire climate information from Fizber. moderate climate of Portsmouth, New Hampshire makes it a pleasant region to live. Average precipitation in January is 3.32, in June it is 3.66. Portsmouth, New Hampshire temperatures by year can be characterized by average annual temperatures, that are 26.7 in January and 69.4 in July.
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Jan.
Feb.
Mar.
Apr.
May
June
July
Aug.
Sep.
Oct.
Nov.
Dec.
Avg.
Avg Max Temperature 35.4 30.0 44.0 51.7 69.9 76.4 79.8 81.2 75.9 65.2 46.6 33.2 57.4
Avg Min Temperature 18.0 10.8 21.4 33.3 44.9 53.9 59.0 56.0 48.1 41.3 27.0 15.3 35.8
Avg Avg Temperature 26.7 20.4 32.7 42.5 57.4 65.1 69.4 68.6 62.0 53.2 36.8 24.2 46.6
Extreme Max Temperature(lowest) 69 43 71 86 92 94 90 95 94 85 64 52
Extreme Min Temperature(lowest) 48 25 42 62 62 70 67 71 66 58 38 30
Extreme Avg Temperature(lowest) 53.5 34.0 56.5 74.0 76.5 82.0 78.0 81.5 80.0 66.5 50.0 41.0
Extreme Max Temperature(highest) 14 15 9 36 45 58 67 69 61 47 32 20
Extreme Min Temperature(highest) -2 1 -1 19 30 39 47 37 33 26 18 2
Extreme Avg Temperature(highest) 8.0 8.5 4.0 28.0 42.5 51.0 58.5 54.5 49.5 37.0 25.5 12.5
Jan.
Feb.
Mar.
Apr.
May
June
July
Aug.
Sep.
Oct.
Nov.
Dec.
Avg.
Avg Precipitation 3.32 1.33 3.86 9.97 4.40 3.66 4.33 1.31 2.83 3.67 3.75 4.42 46.85
Extreme Precipitation (lowest) 0.57 0.85 1.36 4.94 1.05 1.65 1.07 0.35 1.21 0.92 1.01 0.73
Avg Snowfall 0.0 0.0 0.0 0.0 0.0 34.5 18.0 25.0 12.0 0.0 0.0 0.0 89.5
Extreme Snowfall (lowest) 0.0 0.0 0.0 0.0 0.0 6.0 5.0 6.0 4.0 0.0 0.0 0.0
Avg Snow Depth 0.0 0.0 0.0 0.0 0.0 9.8 12.0 9.7 8.2 0.1 0.0 0.0 3.3
Extreme Snow Depth (lowest) 0 0 0 0 0 23 21 15 19 2 0 0
Extreme Snow Depth (highest) 0 0 0 0 0 0 6 5 2 0 0 0
Jan.
Feb.
Mar.
Apr.
May
June
July
Aug.
Sep.
Oct.
Nov.
Dec.
Avg.
Avg Heating Degree Days 17 44 144 360 838 1255 1211 1112 1025 571 324 58 6959
Extreme Heating Degree Days(lowest) 6 10 15 28 39 52 62 55 49 30 26 9
Extreme Heating Degree Days(highest) 0 0 0 0 15 24 18 22 22 0 0 0
Avg Cooling Degree Days 0 0 0 9 45 96 159 163 61 5 0 0 538
Extreme Cooling Degree Days(lowest) 0 0 0 9 12 17 13 17 15 2 0 0
Avg Growing Degree Days 6 0 7 45 258 460 607 584 367 168 0 0 2502
Extreme Growing Degree Days(lowest) 4 0 7 24 27 32 28 32 30 17 0 0
Extreme Growing Degree Days(highest) 0 0 0 0 0 1 9 5 0 0 0 0
The data is taken from www.noaa.gov reports.