Climate of New Hampshire, USA
Area-weighted average across New Hampshire. For where people actually live and travel, see the cities below.
New Hampshire, a subdivision of United States of America, has a strongly continental climate on average. Area-weighted monthly temperatures across the whole territory range from -8.1°C / 17.4°F in January to 19.5°C / 67.1°F in July, with rainfall from 76 mm / 3 in to 109 mm / 4.3 in depending on the season (1119 mm / 44.1 in total across the year). See the city listed below for point-value climate at specific locations — these often differ from the area-weighted average, especially in geographically diverse subdivisions.
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | -8.1°C17.4°F | 80 mm3.1″ | Snowy |
| February | -6.6°C20.1°F | 76 mm3″ | Snowy |
| March | -1.3°C29.7°F | 84 mm3.3″ | Snowy |
| April | 5.1°C41.2°F | 90 mm3.5″ | — |
| May | 11.9°C53.4°F | 98 mm3.9″ | — |
| June | 16.7°C62.1°F | 98 mm3.9″ | — |
| July | 19.5°C67.1°F | 98 mm3.9″ | — |
| August | 18.5°C65.3°F | 105 mm4.1″ | — |
| September | 13.9°C57°F | 89 mm3.5″ | — |
| October | 7.8°C46°F | 96 mm3.8″ | — |
| November | 2°C35.6°F | 109 mm4.3″ | Snowy |
| December | -4.6°C23.7°F | 96 mm3.8″ | Snowy |
Frequently asked questions
What is the best time to visit New Hampshire?
New Hampshire, United States of America does not have a clear sunny-and-dry window by our cutoffs. The warmest month is July at 19.5°C / 67.1°F, and the driest is February at 76 mm / 3 in — likely your best travel window. For city-level detail, see the cities section below.
What is the climate of New Hampshire?
New Hampshire, United States of America has area-weighted monthly average temperatures ranging from -8.1°C / 17.4°F in January to 19.5°C / 67.1°F in July. Annual rainfall averages about 1119 mm / 44.1 in, with the wettest month being November (109 mm / 4.3 in) and the driest February (76 mm / 3 in). Because this is an area average across the whole subdivision, local city values can differ substantially.
What is the hottest month in New Hampshire?
The hottest month in New Hampshire is July, with an area-wide average temperature of 19.5°C / 67.1°F.
What is the coldest month in New Hampshire?
The coldest month in New Hampshire is January, with an area-wide average temperature of -8.1°C / 17.4°F.
When does it rain most in New Hampshire?
The wettest month in New Hampshire is November, averaging about 109 mm / 4.3 in of rainfall. The driest is February with about 76 mm / 3 in.