It's still cool enough up here that the windows stay closed, we're in the low 40's in the morning with the day temps 55 to 62.We've already switched to central air. I used to enjoy opening the windows in spring, at least until the grass pollens go thru the roof around Memorial Day, but my wife and kids are allergic to all the tree pollens peaking right about now. So, we seem to go straight from wood stove to central air, anymore.