We have another member on here form Alaska and I hope he ees this and responds to you. He could help you out alot. It gets cold here however not a cold as Alaska and my yorkies go out to goto the bathroom also to play in the snow. I also still take my on walks in the cold weater. They make warm coats and boots you can put on your dog. Hre is a link with some warm clothes and coats.
http://www.fidofleece.com/