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| Back to New Hampshire, United States. Do you have any pictures of this city? ![]() Planning a vacation? Current weather forecast for Portsmouth, NH Elevation: 21 feet County: Rockingham Land area: 15.6 square miles Zip codes: . Median resident age: 38.5 years New: Portsmouth, NH residents, houses, and apartments details Races in Portsmouth:
New: Political contributions by individuals in Portsmouth, NH Ancestries: Irish (21.7%), English (19.3%), German (10.0%), Italian (9.3%), French (8.5%), French Canadian (5.9%). |
![]() For population 25 years and over in Portsmouth
For population 15 years and over in Portsmouth city
4.9% Foreign born (1.8% Europe, 1.6% Asia, 0.8% North America, 0.6% Latin America). |
![]() Nearest city with pop. 50,000+: Haverhill, MA (29.3 miles, pop. 58,969). Nearest city with pop. 200,000+: Boston, MA (55.9 miles, pop. 589,141). Nearest city with pop. 1,000,000+: New York, NY (270.9 miles, pop. 8,008,278). Nearest cities: Kittery, ME (2.7 miles), South Eliot, ME (3.7 miles), Kittery Point, ME (5.1 miles), Hampton, NH (9.3 miles), York Harbor, ME (10.1 miles), Dover, NH (11.2 miles), Newmarket, NH (11.5 miles), Durham, NH (11.6 miles). Single-family new house construction building permits:
Area code: 603 Industries providing employment: Educational,health and social services (18.8%), Retail trade (15.2%), Professional,scientific,management,administrative,and waste management services (13.2%), Manufacturing (12.5%). |
Based on data reported by over 4,000 weather stations
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Average temp. (°F) | 24.4 | 27.1 | 35.7 | 45.3 | 55.9 | 65.2 | 70.7 | 68.9 | 61.0 | 50.2 | 40.4 | 29.7 |
| High temperature (°F) | 33.9 | 37.1 | 45.7 | 56.6 | 67.9 | 77.2 | 82.7 | 80.6 | 72.5 | 61.4 | 49.6 | 38.6 |
| Low temperature (°F) | 14.9 | 17.1 | 25.6 | 34.1 | 43.8 | 53.2 | 58.7 | 57.1 | 49.5 | 38.9 | 31.2 | 20.9 |
| Precipitation (in) | 4.1 | 3.3 | 4.2 | 4.3 | 3.6 | 3.6 | 3.4 | 3.4 | 3.9 | 4.3 | 4.8 | 4.3 |
Based on data reported by main weather stations
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Days with precip. | 11 | 9 | 11 | 11 | 12 | 11 | 10 | 10 | 9 | 9 | 11 | 11 |
| Wind speed (mph) | 8.7 | 9.2 | 9.4 | 9.1 | 8.3 | 7.7 | 7.0 | 6.8 | 7.0 | 7.5 | 8.1 | 8.5 |
| Morning humidity (%) | 75 | 75 | 75 | 74 | 76 | 79 | 81 | 85 | 87 | 85 | 82 | 78 |
| Afternoon humidity (%) | 59 | 56 | 55 | 50 | 51 | 55 | 54 | 55 | 57 | 55 | 60 | 61 |
| Sunshine (%) | 53 | 56 | 54 | 54 | 55 | 59 | 63 | 61 | 59 | 55 | 45 | 49 |
| Days clear of clouds | 9 | 8 | 8 | 7 | 6 | 6 | 7 | 8 | 9 | 10 | 7 | 8 |
| Partly cloudy days | 7 | 8 | 8 | 8 | 10 | 11 | 12 | 11 | 9 | 9 | 8 | 8 |
| Cloudy days | 15 | 13 | 15 | 15 | 15 | 12 | 12 | 12 | 12 | 13 | 16 | 15 |
| Snowfall (in) | 17.3 | 14.2 | 11.5 | 2.3 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 3.3 | 12.9 |
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