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Best time to visit · New Hampshire, United States
On the climate data, the best time to visit White Mountains is July & August, scoring up to 69/100 with highs around 58°F (14°C) and 4.7 in (119 mm) of rain in July. June and September are good shoulder-season months. The toughest months are October – December, mainly because of cool days.
Highs run from 5°F to 58°F across the year, and the yearly total is about 47.3 in (1201 mm) of rain and snow.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high | 5°F-15°C | 7°F-14°C | 16°F-9°C | 31°F-1°C | 44°F7°C | 53°F11°C | 58°F14°C | 56°F13°C | 50°F10°C | 36°F2°C | 22°F-5°C | 11°F-12°C |
| Avg low | -11°F-24°C | -10°F-23°C | -1°F-18°C | 12°F-11°C | 24°F-4°C | 34°F1°C | 40°F5°C | 38°F3°C | 30°F-1°C | 19°F-7°C | 8°F-13°C | -3°F-19°C |
| Rain/snow | 2.6 in67 mm | 2.8 in70 mm | 3.0 in76 mm | 3.8 in97 mm | 4.3 in109 mm | 5.2 in132 mm | 4.7 in119 mm | 4.4 in113 mm | 3.6 in91 mm | 5.1 in130 mm | 3.7 in94 mm | 4.1 in103 mm |
| Humidity | 96% | 96% | 91% | 82% | 81% | 82% | 84% | 84% | 83% | 86% | 89% | 94% |
| Cloud | 74% | 70% | 67% | 69% | 69% | 67% | 62% | 59% | 56% | 69% | 74% | 78% |
| Comfort | 42 | 43 | 43 | 40 | 45 | 57 | 69 | 68 | 61 | 36 | 39 | 37 |
Source: NASA POWER (public domain), 2001–2025 monthly averages on a ~50 km satellite and reanalysis grid, so coasts and valleys can differ from what's shown. Temperatures were adjusted from the grid cell's ~488 m (1,601 ft) to White Mountains's ~1,891 m (6,204 ft) elevation using the standard lapse rate of 6.5°C per 1,000 m. Precipitation includes snow as melted water; daylight is calculated from latitude. Check a forecast before you go.
The coldest season, with highs of 5–11°F (-15–-12°C) and lows down to -11°F (-24°C). It's the driest season, with only about 9.4 in (240 mm) of rain or snow, 20% of the year's total. December – February are cold enough for snow. Comfort scores bottom out in December; the season averages 41/100.
Temperatures climb through the season, from 16°F highs in March to 44°F by May. About 11.1 in (282 mm) of rain or snow falls across these months, 23% of the year's total. March – May are cold enough for snow. Comfort scores sit mid-table, averaging 43/100.
The warmest stretch of the year, with highs of 53–58°F (11–14°C). It's the wettest season, with about 14.3 in (364 mm) of rain, 30% of the year's total. Lows bottom out around 34°F (1°C). Comfort peaks here: July & August rank with the year's best, and the season averages 65/100.
Temperatures slide from 50°F highs in September to 22°F by November. About 12.4 in (315 mm) of rain or snow falls across these months, 26% of the year's total. October & November are cold enough for snow. It holds the toughest stretch on our comfort score (October & November), averaging 45/100.
By comfort score: 3 Good, 2 Fair and 7 Tough. Tap a month for its own guide.
On the climate data, the best time to visit White Mountains is July & August, scoring up to 69/100 with highs around 58°F (14°C) and 4.7 in (119 mm) of rain in July. June and September are good shoulder-season months. The toughest months are October – December, mainly because of cool days.
June is the wettest month, averaging about 5.2 in (132 mm) of rain. January is the driest, with about 2.6 in (67 mm). The yearly total is around 47.3 in (1201 mm).
January is the coldest, with average lows of -11°F (-24°C) and highs of 5°F (-15°C). The warmest is July, with average highs of 58°F (14°C).
Not very: summer (June – August) humidity averages 83%, and highs peak around 58°F (14°C), so it rarely feels sticky.
On average, yes: lows fall below 32°F (0°C) in September – May, bottoming out around -11°F (-24°C) in January.
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