Started at 4:45 AM and was up at granite pass by sunrise. The trail is solid boot pack (slippery in the AM) the whole way, except Jim Grove trail which was still mostly dry or shallow snow right until you are about to link back up with the main trail (I went this way both times since it's a little shorter) above granite pass the boulder field is basically dry as well. Once thru the keyhole and onto the ledges there were a few snow traverses and I was glad I had my ice axe and micro spikes. I didn't feel the need to use my crampons as the snow was decently grippy with spikes and my axe felt secure as well. Up the trough was mixed snow and rocks and I mostly tried to stick to solid rocks or the snow to avoid the loose rocks. The narrows had a few icey/slick snow patches from the boot pack and again spikes and axe helped me feel secure. There was one avoidable snow patch on the homestretch about 3/4 the way up, with a pretty solid booter in it. I avoided on the way up but went down mostly on the bootpack. Honestly conditions were great and I only saw two people on the summit for about 1 minute but otherwise had the summit to myself for the 10 minutes I was up there. The two guys came up the cables route wearing trail runners with no ice axes so it is
definitelyy doable in trail runners right now although they said their feet were cold. All in all great day on Longs with as perfect a weather as you could ask for in December.
Photos (click for slideshow):