April 9, 2012
(17:33:28) Visitor – Hi Alley: Just looking at weather on the rim for later this week. I understand that the temp “in” the canyon are usually 10 degree warmer. Right?
(17:36:01) Alley – That is correct – temperatures increase about 5 degrees Fahrenheit for every 1,000 vertical feet you descend into the Grand Canyon.
Many people underestimate the heat in Grand Canyon. One of the biggest dangers is not properly hydrating and then being overcome by heat exhaustion. This is one of the biggest dangers for those who Visit the Grand Canyon in the summer months. We highly recommend that you have plenty of liquids when visiting the Grand Canyon. The altitude at the Grand Canyon can also affect your abilities, especially, if you are from coastal – sea level area’s.