Hiya LINBACKR Im in this area too. I have an 8 month male boxer. He seems to do ok in the heat. Sometimes i worry about him "sunbathing" because i had heard they dont do well in the heat. But he always seems to know when to come in. I have a doggy door so he pretty much comes and goes as he pleases. If a doggy door was an option for you, id highly suggest one. Since it is Texas (dry, hot, flat, hot,humid...why are you moving here again?

) you dont have to worry about alot of the cold seeping in or anything. Zeus also loves the water so that also helps cooling the "little" guy down.
Hope that helps ya. =)