How long does the ice on the cliff above LBSL last? Is it garbage now? I imagine it is like playdough during the day, but what about early in the morning?

I was thinking about getting a few thunks in with my tools before I hang them up for the summer. A picture if you don't know what I mean: http://piotrowski.smugmug.com/gallery/2647547#139928511

Thanks,
Dave