I wish we had the answer for you, but in all the years we've been waiting for the lifts to start turning for the season, we've learned that it depends on three factors: snow, temperature and passion. And we usually don't find out an exact opening date until a week before it happens.
Looking at the past 5 years, though, it's safe to say that Mount Snow will open as soon as weather allows. Count on the lifts spinning by Thanksgiving weekend, unless ridiculously unseasonable weather inhibits snowmaking (This happened in 2009. The mountain did not officially open until early December).
Here's what really matters when it comes to answering the question "when is opening day at Mount Snow?"
Snow No surprise here. If we get early snowfall in the Deerfield Valley (and hopefully lots of it), it's an easy decision for Mount Snow's management to drop the ropes. The top of the mountain already received 4" of fresh on October 15, 2010 (see photo, right) -- if that's any indication we could be looking at an early to mid-November opening.
Temperature Thanks to some of the best snowmaking infrastructure in North America, Mount Snow is not necessarily reliant on natural snowfall. They can make their own snow. Of course, this depends on temperatures cold enough to turn that spray of water into ice crystals, which float down to the trail as snow. Keep in mind, just because it's 31 degrees out doesn't mean the snow guns can be turned on. Sustained temperatures in the mid-20s with low humidity are typically the minimum requirement to make quality snow.
Passion The past few years, we've seen Mount Snow open for a day or two in October with a small terrain park on Launchpad, a beginner's trail near the bottom of the mountain. Management wouldn't put in the effort to open a small patch of snow without the people, though. Passionate skiers and riders come out of the woodwork, and that gets everyone excited. In 2008, Launchpad opened for a single day on October 20, with nearly 100 diehard skiers and riders showing up (see video below for proof). If the enthusiasm carries through November, management is more likely to get a top-to-bottom run open early.
So keep your fingers crossed that all the three factors combine and Mount Snow gets an early opening. And as always, if you're looking for a weekend house rental near Mount Snow, you can check out our listings at Chimney Hill -- we're just 15 minutes from the mountain.