by balzaccom » Tue Sep 16, 2014 9:56 am
As usual, AT has done a good job answering the question.
I would just add one more note---that May and early June are usually months where we still have snow in most of the park. The lower elevations, like Yosemite Valley and Hetch-hetchy, will not have snow on the ground, but most of the park is much higher that than. We've had snow when backpacking in June at 6,000 in Yosemite---and almost all of the park is higher than that. Tioga Pass is almost 10,000 feet, and that road rarely opens before the middle of June.
All this to say that you will need to plan your visit with the weather and conditions in mind. And you will find that some of your activities will be limited by the conditions in May and June.
Check our our website: http://www.backpackthesierra.com/
Or just read a good mystery novel set in the Sierra; https://www.amazon.com/Danger-Falling-Rocks-Paul-Wagner/dp/0984884963