I hope this hasn't been covered too many times already. I am trying to find out when on average is the first significant snow or ice event in the Fall of the year. By significant I mean snow/ice that would create the need for micro spikes or crampons on any part of the trail to Whitney summit. I will be hiking from Tuolumne Meadows and plan to summit Whitney mid/late September. I like to prepare for the worst conditions likely. I know Sept. is early for lasting snow but would like to hear some worse case scenarios as they have happened. (My wife thinks I'm just fishing for an excuse to buy crampons).
Thanks in advance for any info!