How cold is too cold for smooth coat JRT

We live in Virginia and the temperature in the winter's mostly in the low 30's, but sometimes windchill can be in 20's to 10's. Already our adopted 7 year old does not like to go out when it's in the mid 30's. Our other one who is 2 doesn't seem to mind going out, but comes in if offered. The 7 year old is totally smooth coat/short hair. The 2 year old is mixed smooth/rough coat- some shor hair and some long hair. Do they need coats- like the fleece ones- or do sweaters work just as well? I thought JRT's were outside dogs and loved the outdoors- ours seem to want to stay in all the time now that the weather is getting colder. What are your thoughts???
Thanks so much..

• Re: How cold is too cold for smooth coat JRT Dec 28 (0)
• Re: How cold is too cold for smooth coat JRT Dec 28 (0)