The Southwest is the region most skewed to favor late season skiing. The light and dry snow in modest quantities takes a long time to accumulate a sufficient base, yet that snow combined with high altitude and north exposure preserves extremely well.
Crested Butte and Taos are the most conspicuous examples where it's just dumb to advance book for December. Over the long term, an average of only 50% of Taos' terrain is skiable at Christmas (and we know which half won't be), and CB's North Face is open at New Year's only 15% of the time. Watch Snowmass reports for a few years and you'll see that Hanging Valley/Cirque usually don't open until mid to late January. Gold Hill at Telluride has only been recently been lift served, but I suspect its track record will prove similar. Purgatory is a more intermediate pitched mountain and needs less coverage than the examples above. Silverton's low skier density and slightly higher snowfall make December more promising than most of these places, but it's still speculative.
When I was in Aspen/Telluride/Silverton in late March 2004 there had been a record heat wave of 3 weeks duration. Yet 95% of terrain was skiable, and it was enjoyable if you chose your runs wisely by exposure/time of day. If you go to any of these places in the wrong December, you will be skiing man-made groomers and looking at dirt/rocks elsewhere. Only at Wolf Creek are the odds favorable, and even there it's not covered at Christmas in 10% of seasons.
Most of the above advice does not apply to option_ride, because he lives within driving distance and can choose to ski these places only in the better Decembers.
Crested Butte and Taos are the most conspicuous examples where it's just dumb to advance book for December. Over the long term, an average of only 50% of Taos' terrain is skiable at Christmas (and we know which half won't be), and CB's North Face is open at New Year's only 15% of the time. Watch Snowmass reports for a few years and you'll see that Hanging Valley/Cirque usually don't open until mid to late January. Gold Hill at Telluride has only been recently been lift served, but I suspect its track record will prove similar. Purgatory is a more intermediate pitched mountain and needs less coverage than the examples above. Silverton's low skier density and slightly higher snowfall make December more promising than most of these places, but it's still speculative.
When I was in Aspen/Telluride/Silverton in late March 2004 there had been a record heat wave of 3 weeks duration. Yet 95% of terrain was skiable, and it was enjoyable if you chose your runs wisely by exposure/time of day. If you go to any of these places in the wrong December, you will be skiing man-made groomers and looking at dirt/rocks elsewhere. Only at Wolf Creek are the odds favorable, and even there it's not covered at Christmas in 10% of seasons.
Most of the above advice does not apply to option_ride, because he lives within driving distance and can choose to ski these places only in the better Decembers.