-10 is not too cold I think. Only when it got down to -35 did it really become uncomfortable, and I hate being cold. There is too much skiing to be done to get that cold. Normally only felt the cold whilst sitting on the lifts.
I first started boarding in Killington, Vermont, USA. the temp there was very cold -40 at times, I said then that that was the end to winter holidays. 2 years later i was talked into going to Pamps, this was the complete oppersite and for most of the week we were boarding with out a coat on it was so warm, 3 years later I am looking to book my 4th visit to Pamps for some lovley sun shine and some great snow.