Some Ivy's like I think you are describing are marginally hardy so be careful putting them outside. At this point, if it getting that cold I would keep them in that pot, and try to find a place in the house that gets some sun...doesn't need to be excessively warm, like no colder than mid forties, and get them through the winter that way. Spring time plant them out. If you wait until spring you will give them more time to establish for the next winter increasing their chances of survival. If you plant them out now, they may have problems because they won't have time to establish.

Hope this helps.

DAN

Thanks for the response.

I have pretty much resigned myself to the idea that I am going to have to repot them and take care of them all winter. I have 24 plants that all took, so there is going to be a few pots scattered around the house until spring!