North America
USA
Mammoth Mountain
Natural snow at mid-mountain (2,896 m) is reliably skiable from 16 Jan to 15 May. At the peak of the season the village at 2,424 m is usually skiable (86% of days) and the summit averages 81 cm of fresh snow per fortnight.
Month by month
October
Natural snow at mid-mountain reached 30 cm on fewer than 5% of days.
November
Unreliable for natural snow. Mid-mountain reached 30 cm on 10% of days.
December
Unreliable for natural snow. Mid-mountain reached 30 cm on 52% of days. The summit averages 106 cm of new snow in the month.
January
Usually skiable. Mid-mountain had 30 cm or more on 88% of days, typically 72 cm deep. In the worst of the eleven seasons there was none. The summit averages 133 cm of new snow in the month.
February
Snow-sure. Mid-mountain (2,896 m) had 30 cm or more of natural snow on 95% of days, with a typical depth of 127 cm. The worst of the eleven seasons managed 31%. Snow usually reaches the village too (80% of days). The summit averages 127 cm of new snow in the month.
March
Snow-sure. Mid-mountain (2,896 m) had 30 cm or more of natural snow on 94% of days, with a typical depth of 178 cm. In the worst of the eleven seasons there was none. Snow usually reaches the village too (88% of days). The summit averages 135 cm of new snow in the month.
April
Snow-sure. Mid-mountain (2,896 m) had 30 cm or more of natural snow on 91% of days, with a typical depth of 189 cm. In the worst of the eleven seasons there was none. The summit averages 42 cm of new snow in the month.
May
Usually skiable. Mid-mountain had 30 cm or more on 86% of days, typically 117 cm deep. In the worst of the eleven seasons there was none. The summit averages 20 cm of new snow in the month.
June
Unreliable for natural snow. Mid-mountain reached 30 cm on 28% of days.
July to September
Natural snow at mid-mountain reached 30 cm on fewer than 5% of days.
Questions
When is the best time to ski Mammoth Mountain?
For natural snow, 16 Jan to 15 May. In that window mid-mountain (2,896 m) had 30 cm or more of natural snow on at least 90% of days across eleven seasons. February is the most reliable month.
Is there snow at Mammoth Mountain in December?
In December, mid-mountain had 30 cm or more of natural snow on 52% of days over eleven seasons, typically 30 cm deep. One or more seasons had none at all.
Does the snow reach the village at Mammoth Mountain?
At its most reliable, in February, the village at 2,424 m had 30 cm or more of natural snow on 80% of days. You can usually ski back to the village.
How high is Mammoth Mountain?
The modelled village is at 2,424 m, mid-mountain at 2,896 m and the summit at 3,369 m. The ski area itself spans 2,457 m to 3,360 m.
Is snow at Mammoth Mountain getting more or less reliable?
Over the eleven seasons modelled, snow-sure days have gone up by about 83 per decade. Eleven seasons is too short to separate a climate trend from year-to-year swings.
What is the nearest airport to Mammoth Mountain?
Mammoth Yosemite (MMH) is about 17 km away in a straight line. Eastern Sierra (BIH) is 66 km away. Road distances are longer.