Sun Valley · Idaho, United States

Sun Valley in December

Conditions, weather, crowd levels, and tips for visiting Sun Valley in December

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Is Sun Valley Open in December?

Open

Sun Valley is open in December, outside its peak-season window.

Weather & Snow Conditions

45cm(18in)Moderate

45cm

Avg Snowfall

-2°C

Avg High (28°F)

-12°C

Avg Low (10°F)

18"

Snowfall (inches)

In December, Sun Valley sees an average of 45cm (18 inches) of snowfall. Daytime temperatures typically reach -2°C (28°F) with overnight lows around -12°C (10°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

$209

December is one of the busier periods at Sun Valley. The day pass price this month is $209 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

36%(44 trails)

42%(51 trails)

22%(27 trails)

0%(0 trails)

In December, Sun Valley typically runs most of its 121 trails and 18 lifts.

Frequently Asked Questions

Is Sun Valley open in December?

Yes, Sun Valley is typically open in December (open).

How much snow does Sun Valley get in December?

Sun Valley averages approximately 45cm (18 inches) of snowfall in December, one of the lighter-snowfall months of the season here. Actual amounts vary year to year.

How crowded is Sun Valley in December?

Crowd levels at Sun Valley in December are typically high.

What should I wear skiing at Sun Valley in December?

In December, temperatures at Sun Valley range from -12°C to -2°C (10°F to 28°F). Standard ski layering works well at these temperatures: an insulated jacket, waterproof gloves, and neck protection.