With a supposed 55 degree high we packed our long john’s and mittens and drove out to Yosemite yesterday. However, at the time of our arrival at 9:30 AM, the temperature was 65. We had been duped into picking the perfect sunny day to enjoy the summer opener. More Photos: http://gallery.johnmizell.com/main.php?g2_itemId=6013 The crowds were thick, but…