This isn't for me, but my brother in Dallas. He has been helping out the scouts in his area and just realized they go camping a lot. Sometimes.....even backpacking. He also realized his bag is too heavy (not surprising considering he bought it at wally world). Anyways, I don't need a bag recommendation, only a Temperature recommendation. He will use it spring, summer and fall in Northern Texas. When I lived in San Antonio, my 60F bag worked great. But I am not sure about the northern part of that massive state. Any suggestions are greatly appreciated, thanks.