Mammoth Mountain · California, United States

Mammoth Mountain in December

Conditions, weather, crowd levels, and tips for visiting Mammoth Mountain in December

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Is Mammoth Mountain Open in December?

Open

Mammoth Mountain is open in December, outside its peak-season window.

Weather & Snow Conditions

120cm(47in)Heavy

120cm

Avg Snowfall

0°C

Avg High (32°F)

-9°C

Avg Low (16°F)

47"

Snowfall (inches)

In December, Mammoth Mountain sees an average of 120cm (47 inches) of snowfall. Daytime temperatures typically reach 0°C (32°F) with overnight lows around -9°C (16°F). Standard ski layering works well at these temperatures: an insulated jacket, waterproof gloves, and neck protection.

Crowd Levels & Pricing

Crowd Level

High

Day Pass Price

$219

December is one of the busier periods at Mammoth Mountain. The day pass price this month is $219 per day.

What to Pack for December

Essential Layers

Moisture-wicking base layer (merino or synthetic)
Lightweight mid-layer (thin fleece or softshell)
Waterproof, breathable outer shell
Standard waterproof ski gloves

Accessories

Helmet (always recommended)
Goggles with a versatile lens for variable conditions
Neck gaiter or buff
Sunscreen SPF 50+ (stronger UV at altitude)

Trail Conditions in December

25%(44 trails)

40%(70 trails)

20%(35 trails)

15%(26 trails)

In December, Mammoth Mountain typically runs most of its 175 trails and 28 lifts.

Frequently Asked Questions

Is Mammoth Mountain open in December?

Yes, Mammoth Mountain is typically open in December (open).

How much snow does Mammoth Mountain get in December?

Mammoth Mountain averages approximately 120cm (47 inches) of snowfall in December, one of the snowier months of the season here. Actual amounts vary year to year.

How crowded is Mammoth Mountain in December?

Crowd levels at Mammoth Mountain in December are typically high.

What should I wear skiing at Mammoth Mountain in December?

In December, temperatures at Mammoth Mountain range from -9°C to 0°C (16°F to 32°F). Standard ski layering works well at these temperatures: an insulated jacket, waterproof gloves, and neck protection.