Hiked this on the 9th of November 2017. There is no snow on the trail until almost 9000 ft and even then the snow is minimal. There are plenty of places to hike on the way up crown but I recommend pushing all the way to crown. The lake is gorgeous and worth the trip. We were the only people on the lake due to the time of year which made it even better. It got cold at night but not unbearable. This was by far one of the best backpacking experiences I've had in the Sierras. The trail is easy to follow and not too strenuous.