It's all AU.

Rose was all bundled up, and looking more chipper then she had in a while. The Doctor just had his coat on, as usual. A good 6 inches had blanketed the town, enough to really play in not enough to trap people indoor is they wanted to get out. The worked on a snowman for a bit, when Rose turned to the Doctor and commented, "Snowball fights work better with more people. Where is everyone?"

Harry was enjoying the snow more than he'd expected to when he first set eyes on it when opening his curtains that morning. He was bundled up in a big (black) coat and scarf and leather gloves and positively bouncing as he found a path in the park no-one had walked along yet and made deep, dark footprints in the virgin white of the snow.

He wasn't quite so happy when a load of snow slid off a tree and right onto his head, though. In fact, he looked pretty outraged, glaring about to try and see if someone had done that on purpose.