Is my needle palm tree dead?

ok, I bought my needle palm off ebay for $15 and it did fine all the way through december. Im in zone 7 and it's hardiness is zone 6 so I dont know why it looks dead. All of its leaves are white except for one frond which is still green. The coldest it got down to was 8 degrees farenheit and its hardiness is supposed to be -10 degrees. I even covered it up with mulch. I live in Crossville Tennessee on the berland plateau. This has been one of our coldest and snowiest winters and has been pretty windy. We usually have mild cool winters. This winter has had had temps below average and snowfall above average. It is rarely ever below freezing in the daytime but we have had freezing days and the ground and trees have been frozen (including the palm tree) and that rarely happens, too. It has been below freezing many times this winter. A few years ago, I remember it being 60 degrees in january for over a week and it only snowed 3 or 4 times that winter and I dont remember the trees ever freezing. This winter it only got to 60 once in december and has snowed at least 12 or 13 times so I wonder if that would have taken a toll on the needle palm. The needle palm is very young and is only a sapling. Will it die all the way or will it sprout new leaves?