There was a dusting of snow on the path, and I was the first to cross it. At 27F, it was warm enough that I didn't have to worry about getting cold. I love quiet, early-morning rides across fresh snow!
I took it slow because today was my first day back on the bike after about a week off for being seek. And even then, I was only on the bike for a day or two after about a week off for being sick.