January is peak season at Big Sky. The mountain is fully operational with all lifts and trails open (conditions permitting). Snow depth is typically at its highest, and conditions are at their most consistent. This is the busiest period, so expect low crowd levels.
110cm
Avg Snowfall
-9°C
Avg High (16°F)
-20°C
Avg Low (-4°F)
43"
Snowfall (inches)
In January, Big Sky sees an average of 110cm (43 inches) of snowfall. Daytime temperatures typically reach -9°C (16°F) with overnight lows around -20°C (-4°F). Standard ski layering works well at these temperatures. A good quality insulated jacket, waterproof gloves, and neck protection will keep you comfortable.
Crowd Level
Day Pass Price
$209
January is a quieter period at Big Sky, making it one of the best times to visit for short lift lines and a relaxed atmosphere. Day passes are priced at $209, reflecting the lower demand. Midweek visits during this month can feel practically empty.
During peak season in January, expect the vast majority of Big Sky's 317 trails to be open. All 39 lifts should be running, and grooming crews maintain a consistent surface on marked runs. Off-piste terrain benefits from accumulated snowpack and is generally in prime condition.