Donna had a large coat and boots on as well to make sure that she was all wrapped up. They were right near the TARDIS, and several Doctors knew where they were, so there shouldn't have been any problem. She grinned at Antha, "Isn't it pretty? Yeah of course we can make snow angels and snowmen.." she assured her.
She put on her gloves and went over to help make snow balls with her, and then possibly make one big snowman.