Hot Is Relative. We have our first scorching hot day and of course the boys want to get out the swim trunks and start up the sprinkler. It was 54 degrees F. They ran around in the sprinkler for 15 minutes and then asked me how to turn the water warmer. When it gets over 70 degrees F we have to force our kids to play outside. They wilt at that temperature. See the buds on the tree? That was three days ago. Today the leaves are opened and getting big. It is amazing what all the extra daylight does for plants. We planted that tree 13 years ago and it struggled along in an unimpressive way for years. Then one year a moose came along and munched the tree down to a little nub of a stick. We were so upset that our little tree had been bullied like that. But when it grew back, it was full and healthy. The moose pruned it stronger.