Mike, I haven’t been up there lately. There has been some snow, but it’s also been quite warm. I would call the ranger station for the latest on conditions (but be aware that they tend to paint a more bleak picture to scare off the newbies).
You can check the Long Valley webcam for snow conditions, although it will be different as you near the summit: http://www.pstramway.com/long-valley-cam.html
The Mountain Station weather shows the forecast low hovering a few days above freezing, but again, this could change very quickly. http://www.pstramway.com/weather.html
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