In North America Timberline in Oregon is the only area open, although only at weekends, with a 75cm (2.5 foot) base.
However temperatures have dipped on both sides of the continent and Arapahoe Basin and Loveland in Colorado have begun making snow, as has Sunday River in Maine. However resorts had begun opening by this time last year, so it seems they're a few days behind this ‘winter' 2010-11.
There's been fresh natural snowfall too, Breckenridge, one of the world's highest resorts and ski areas and steamboat both reported a white coat this week, while ski instructors at Silverton Mountain have made first tracks in Colorado on their mountain.
Mt Norquay by Banff looks likely to be the first area to open in Canada, for its 85th season, on 30th October.