Really depends on your major/how dedicated you are to school. I started out as a freshmen going to school two days a week and skiing pretty much 3-4 days a week. Now I'm getting ready to graduate and the real world is cock slapping me in the face.
Moral of the story: Freshman/Sophmore year are a breeze and you will be skiing a lot. Past that school becomes more of a priority.
"You come to Utah on vacation and leave on probation" - James K.