9 thoughts on âProtein Pile-up: Common Cause of Brain Diseaseâ. 1  Interesting article by Dr. Collins. 2  This is an exciting discovery and Iâll be looking forward and following new developments. 3  You make this sound like it is normally happening to everyone.
Summer months are pretty hot, especially at the bottom of the canyon, where it can be well over a hundred. The best hiking weather is generally April and May, and late September through October. But then, these are the hardest times to get backcountry permits. You would send your applicAtion on May 1 for a permit date any time in September.
Grand Canyon Weather During Summer. At the top of the Rims, the summer day time high temperatures are typically cool and refreshing. With daily highs of low 80s in June, July, and August at the South Rim and the mid-70s at the North Rim, the standard dress is light and even shorts.