It is certainly possible for Killington to be open through May the recent rain isn't helping but there's still a ton of snow. More than last year and I believe closing day 2014 was May 20th. Ill be there in a half hour ill post a report
Epic spring skiing today, lovely corn snow on ALL the mountain with temps in the 50's. The best was up on Heaven's Gate and Castlerock with Ripcord, still my favorite, just perfectly Awesome today!!! And it looks like winter returns tonight and tomorrow with 5" to 10" white stuff in the forecast.
Superb conditions under reported on this site. More than 3" and it's all over the mountain. Not like those six a few days ago which might have been on the top only. Sun is slowly coming out so it gets even better.
Best conditions I saw were in the glades off of Rumble and Egan's woods. If you hate ice moguls, you don't have a lot of options. Stick to the groomers and the woods, there's moguls in the woods but the snow's better. Wasn't that cold but it was a bit windy at times. No liftlines at all.