Started at Springer 04/07/2018; snow and low 20's the first night; but the most miserable was on 04/15 at Bly Gap. Mid teens, 40+ mph winds, snow blowing sideways ! Too dangerous to camp on the ridge, so we hunkered down in the "no camping" area below the ridge. It will be cold at night for sure in mid April; be prepared. I found Georgia challenging, but not too difficult. Starting out, I really took my time , and enjoyed the hike. There are a few nice vistas, especially Blood Mt, but nothing like you would experience further up the trail. If you are in decent shape, and are targeting 8-10 mpd, you shouldn't have too many problems. If you start in May, I would expect less crowds and obviously warmer temperatures.