Isn't it funny? I could never imagine how to dress a summer newborn, so I know I'll have the same concerns if I ever have a summer bub.
Me too! I've never had a summer baby.

Mason was born in September, Angus in June and Caleb in August.

Don't stress. Just make sure you have a few loose layers and a bunny rug because they can be surprisingly hot and you may need to strip a layer off!
I had an oil filled coloumn heater in their room just to take the chill off and that was all. Made night time feeds more pleasant for me too!