Roundtop and Whitetail both closed for the season on Sunday, March 20th. I was looking at the webcams for both of those resorts on Saturday the 19th and while both had a fair amount of terrain open, the conditions were horrid. That week was full of sunny, 60+ degree days. Most of the trails were slush runs. So I think it's safe to say that you're right about the AN temps in the middle of the month.