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Best time to visit · Pennsylvania, United States
May and September & October are the best time to visit Mount Washington on the climate data: September scores 87/100, with highs around 77°F (25°C) and 3.3 in (85 mm) of rain. April and June – August are good shoulder-season months. The toughest months are December – February, mainly because of cool days.
These averages also cover Downtown & the Cultural District.
Highs run from 34°F to 84°F across the year, and the yearly total is about 39.0 in (991 mm) of rain and snow.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high | 34°F1°C | 37°F3°C | 47°F9°C | 61°F16°C | 71°F22°C | 79°F26°C | 84°F29°C | 84°F29°C | 77°F25°C | 63°F17°C | 50°F10°C | 38°F4°C |
| Avg low | 19°F-7°C | 20°F-7°C | 28°F-2°C | 38°F3°C | 49°F10°C | 58°F15°C | 62°F17°C | 61°F16°C | 53°F12°C | 42°F6°C | 31°F0°C | 25°F-4°C |
| Rain/snow | 2.9 in73 mm | 2.7 in68 mm | 3.1 in78 mm | 3.3 in85 mm | 3.7 in94 mm | 4.1 in105 mm | 3.6 in91 mm | 3.2 in81 mm | 3.3 in85 mm | 3.3 in84 mm | 2.7 in68 mm | 3.1 in79 mm |
| Humidity | 87% | 86% | 82% | 78% | 78% | 77% | 72% | 69% | 71% | 76% | 81% | 86% |
| Cloud | 79% | 76% | 70% | 67% | 67% | 60% | 56% | 53% | 51% | 63% | 66% | 80% |
| Comfort | 40 | 41 | 54 | 77 | 81 | 77 | 75 | 79 | 87 | 81 | 61 | 39 |
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. The grid cell sits at about 332 m (1,089 ft), close to Mount Washington's own ~368 m. Precipitation includes snow as melted water; daylight is calculated from latitude. Check a forecast before you go.
The cold peaks here: highs of 34–38°F (1–4°C), and nights reach 19°F (-7°C). It's the driest season, with only about 8.7 in (220 mm) of rain or snow, 22% of the year's total. December – February are cold enough for snow. It holds the toughest stretch on our comfort score (December – February), averaging 40/100.
Temperatures climb through the season, from 47°F highs in March to 71°F by May. About 10.1 in (257 mm) of rain or snow falls across these months, 26% of the year's total. March is cold enough for snow. May is among the best-scoring months (season average 71/100).
Peak warmth: highs of 79–84°F (26–29°C). It's the wettest season, with about 10.9 in (277 mm) of rain, 28% of the year's total. June feels humid, with humidity near 77%. June – August score well without being the very best (season average 77/100).
Temperatures slide from 77°F highs in September to 50°F by November. About 9.3 in (237 mm) of rain falls across these months, 24% of the year's total. Nights dip below freezing in November. September & October are among the best-scoring months (season average 76/100).
By comfort score: 7 Great, 1 Good, 1 Fair and 3 Tough. Great months: April – October. Tap a month for its own guide.
May and September & October are the best time to visit Mount Washington on the climate data: September scores 87/100, with highs around 77°F (25°C) and 3.3 in (85 mm) of rain. April and June – August are good shoulder-season months. The toughest months are December – February, mainly because of cool days.
June is the wettest month, averaging about 4.1 in (105 mm) of rain. February is the driest, with about 2.7 in (68 mm). The yearly total is around 39.0 in (991 mm).
January is the coldest, with average lows of 19°F (-7°C) and highs of 34°F (1°C). The warmest is July, with average highs of 84°F (29°C).
Yes: in June humidity averages 77% with warm temperatures, so it feels muggy. Summer highs peak around 84°F (29°C).
On average, yes: lows fall below 32°F (0°C) in November – March, bottoming out around 19°F (-7°C) in January.
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