Ski season in Colorado usually starts in mid-October and by the beginning of November almost all the Colorado ski resorts are open for business.
But the bulk of ski season in Colorado starts at the beginning of November and goes through April. Although sometimes the ski season can last into May or June.
One thing to bear in mind about an early ski-season opening is the amount of manufactured snow that covers large portions of the slopes.
If you have the ability to avoid tourist times during the holidays, you’ll hit peak powder with fewer crowds on weekdays in Colorado.