I think it was Feb 1992 I went to Killington with my dad for a 5-6 day ski trip during winter break. They prob had about half the trails open. Brown grass showing on a ton of the closed ones. That year was really bad but even some other years we did day trips had plenty of trails closed due to lack of snow and it was mid/late winter when there usually is ample snow pack up there. But not during those lean years.
It was a great time to learn to ski though because once the winters got good, you didn’t even flinch if there was an icy patch. I was used to skiing on huge slabs of ice during the lean years, lol.