Natural snow in December
Sun Valley snow in December
December is a gamble for natural snow at Sun Valley: mid-mountain was snow-sure in just 6 of the last 30 winters.
Questions
Is there snow in Sun Valley in December?
Rarely, as natural snow. Mid-mountain had 30 cm or more of modelled natural snow on 44% of December days over the last 30 winters, before any snowmaking.
Early or late December for snow at Sun Valley?
Late December has been surer: 62% against 27% at mid-mountain.
How many recent winters had reliable snow at Sun Valley in December?
6 of the last 30. In those winters mid-mountain had 30 cm or more of natural snow on at least 90% of December days. Thirty winters show how much one season differs from the next; how winters have changed is covered by the long record.
Does this include snowmaking?
No. These figures are modelled natural snow only, so groomed pistes often ski better than this.