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New Hampshire Climate
The Granite State is known for its highly changeable climate where the weather can be warm and sunny one minute and cold and snowy the next. Each of the four seasons vary greatly in their daily temperatures and weather patterns. Climate variations are also due to distance from the ocean, mountains, lakes or rivers. Spring arrives mid March and with it the most unpredictable weather patterns of the year. It's been known to snow well into April when the flowers are just starting to bloom. The wacky weather patterns of Spring are replaced mid-June by the warm, sunny days and cool, clear nights of Summer. Starting in late September to early October, the landscape becomes ablaze with color and the evening temperatures start dipping below freezing. The days, however, are usually fairly sunny and mild. Winter begins in late October with the first dusting of snow and continues through March, with the last snow usually falling in April.
| Month | Average High |
Average Low |
Mean | Average Precip. |
Record High |
Record Low |
| January | 29°F | 7°F | 19°F | 2.50 in. | 68°F (1950) |
-33°F (1984) |
| February | 33°F | 10°F | 22°F | 2.50 in. | 67°F (1997) |
-37°F (1943) |
| March | 42°F | 22°F | 32°F | 2.70 in. | 85°F (1977) |
-16°F (1967) |
| April | 56°F | 31°F | 44°F | 2.90 in. | 95°F (1976) |
0°F (1945) |
| May | 68°F | 41°F | 55°F | 3.10 in. | 97°F (1962) |
21°F (1966) |
| June | 77°F | 51°F | 64°F | 3.20 in. | 98°F (1995) |
26°F (1939) |
| July | 82°F | 56°F | 70°F | 3.20 in. | 102°F (1966) |
33°F (1939) |
| August | 79°F | 54°F | 67°F | 3.30 in. | 101°F (1975) |
29°F (1965) |
| September | 71°F | 46°F | 59°F | 2.80 in. | 98°F (1953) |
20°F (1941) |
| October | 60°F | 34°F | 48°F | 3.20 in. | 90°F (1963) |
10°F (1972) |
| November | 47°F | 27°F | 37°F | 3.70 in. | 80°F (1950) |
-5°F (1989) |
| December | 34°F | 14°F | 24°F | 3.20 in. | 68°F (1982) |
-22°F (1951) |
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