Get the app

Early winter · Weather & things to do

Mount Washington in December

Mount Washington cools off: highs slip to 38°F (4°C), from 50°F in November, with lows of 25°F (-4°C) and about 3.1 in (79 mm) of rain or snow.

With a comfort score of 39/100 (12th of 12), it's one of the toughest months, held back mainly by cool days.

Mount Washington, Pennsylvania, United States
Avg high
38°F (4°C)
Avg low
25°F (-4°C)
Rain or snow
3.1 in (79 mm)
Humidity
86%
Cloud cover
80%
Daylight
~9 h 08 min
Comfort score
39/100 · Tough

What December feels like

Highs only reach about 38°F (4°C), so plan short stints outside between indoor stops.

Average lows of 25°F (-4°C) mean frosty nights and icy mornings.

Expect about 3.1 in (79 mm) of precipitation (rain or snow). Because the average temperature is below freezing, snow is likely on some days.

Expect plenty of overcast days, with cloud cover near 80%.

Daylight is short, roughly 9 h 08 min mid-month, so start sightseeing early.

Mount Washington: December compared with the months either side
NovemberDecemberJanuary
Avg high50°F10°C38°F4°C34°F1°C
Avg low31°F0°C25°F-4°C19°F-7°C
Rain/snow2.7 in68 mm3.1 in79 mm2.9 in73 mm
Daylight9 h 42 min9 h 08 min9 h 25 min
Comfort613940

Plan around December

December is one of the lower-scoring months here; the best are May and September & October.

What to pack for December

What to do in Mount Washington in December

With highs near 38°F, these picks lean toward food, drink and places with a roof, with outdoor options when the weather breaks.

Nearby in December

These averages also cover Downtown & the Cultural District.

NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.

Mount Washington in December: quick answers

Is December a good time to visit Mount Washington?

It's one of the tougher months here, scoring 39/100, held back mainly by cool days. The best months are May and September & October. Expect highs of 38°F (4°C) and 3.1 in (79 mm) of rain or snow.

How cold is Mount Washington in December?

Average highs are 38°F (4°C) and average lows 25°F (-4°C), making it the 3rd-coldest month by daytime highs, with nights below freezing on average.

Does it snow a lot in Mount Washington in December?

Some: about 3.1 in (79 mm) of rain or snow falls across December on average, the 5th-driest month of the year. With temperatures this low, much of it may fall as snow. The annual total is about 39.0 in (991 mm).

What should I pack for Mount Washington in December?

Bring hat, gloves and thermal base layers (lows around 25°F), insulated, waterproof boots (snow is likely on some days), waterproof outer layer (about 3.1 in of rain or snow) and comfortable walking shoes (most picks involve some walking).

Routes in season in December

Planning Mount Washington in December?

Bring the crew into one shared trip: vote on dates, build the day-by-day plan, split costs and share one packing list.

Get TripsCircle