January is peak season at Mammoth Mountain. 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 moderate crowd levels.
150cm
Avg Snowfall
-2°C
Avg High (28°F)
-11°C
Avg Low (12°F)
59"
Snowfall (inches)
In January, Mammoth Mountain sees an average of 150cm (59 inches) of snowfall. Daytime temperatures typically reach -2°C (28°F) with overnight lows around -11°C (12°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
$219
Crowd levels at Mammoth Mountain in January are moderate. Weekends draw more visitors than weekdays, and holiday periods within the month will be noticeably busier. Day passes are priced at $219. For the best experience, aim for a midweek visit.
During peak season in January, expect the vast majority of Mammoth Mountain's 175 trails to be open. All 28 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.