Natural snow in December
Shiga Kogen snow in December
December is a safe bet for natural snow at Shiga Kogen: mid-mountain was snow-sure in 26 of the last 30 winters.
Questions
Is there snow in Shiga Kogen in December?
Yes, reliably. Mid-mountain had 30 cm or more of modelled natural snow on 95% of December days over the last 30 winters, before any snowmaking.
Early or late December for snow at Shiga Kogen?
Late December has been surer: 100% against 90% at mid-mountain.
How many recent winters had reliable snow at Shiga Kogen in December?
26 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.