Natural snow · September
Portillo snow in September
Over the last 11 winters, mid-mountain (2,945 m) at Portillo had 30 cm or more of modelled natural snow on 64% of September days. The summit (3,310 m) reached 100%, the village (2,580 m) 6%.
Questions
Is there snow in Portillo in September?
Usually. Mid-mountain had 30 cm or more of modelled natural snow on 64% of September days over the last 11 winters, before any snowmaking.
Early or late September for snow at Portillo?
The first and second halves of September have been about as reliable as each other (64% and 64%).
How many recent winters had reliable snow at Portillo in September?
6 of the last 11. In those winters mid-mountain had 30 cm or more of natural snow on at least 90% of September days. Eleven winters show how much one season differs from the next, not a long-term trend.
Does this include snowmaking?
No. These figures are modelled natural snow only, so groomed pistes often ski better than this.