Dixie runs around the yard during the day when it's hot. So heat really don't effect her that much. At my parent's house she gets to play with 2 kids outside so she is always running around them. Here in Lubbock she lays around the floor or lays on the bed with me when i take a nap during the day. Plus we got 2 units on my little travel trailer so we stay nice and cool most of the time.