People think the southern Appalachians have mild winters like the surrounding areas, then go up utterly unprepared quite frequently. You’d be shocked at the annual snowfall totals atop some of the higher peaks, Alpine plant species grow up there.
Very true. I learned the hard way also. Don’t wear a light jacket North of Asheville, not matter if the temp is 60 degrees in the winter. We went to the Nantahala River Gorge in February many years ago. It was 60 here in the upstate. Reached our destination it was 30, not counting the wind chill. Four feet long ice hanging from the springs that flow from the mountain tops.
It's possible to climb this peak year round, however, be prepared for changing weather conditions as snow storms have been known to occur during all months of the year. Temperatures on this peak have been measured as low as -34°F and never above 81°F. Average annual snowfall is 104 inches and winds often reach 100+ mph on the West Face. The fair weather climbing season generally lasts from May to October while those hiking during the winter shouldn't be surprised to find themselves in 2+ feet of snow.