We have received an insane amount of snow the last few weeks. Jackson Hole ski resort is claiming record snow. Over 100" since January. In other words anytime from now on is going to be great riding this winter. January, days are shorter and weather is colder, but deep snow is more likely. March is the other end of the spectrum. Plenty of snow to ride, longer days, less chance for over the hood powder, yet still possible. Although many years it is possible to ride as late as late May and sometimes much later, but most consider the snowmobile season somewhat over by the first week of April. That is also when the valley snow has typically melted, not always. The state groomers typically stop grooming in early April. You could always come out in mid-march and ride plus attend the Jackson Hole HillClimbs. Hope that helps. If you are looking for lodging and riding advise, give us a call Rockin' M Ranch 307-654-2288.