If it's around the freezing point and there's snow/slush on the runways (more typical of grass runways than hard ones) you might want to talk to the maintenance folks about removing the wheel spats temporarily. If slush refreezes in the spats you're in for a nasty surprise on landing. It will cost you a few knots in the cruise though.
Also include a check of the OAT in your pre-start checklist. They do break occasionally, so check its readout with the ATIS or other reference.