Biking in the snow can be quite fun, I enjoyed it last winter up here in Seattle. Good gloves, glasses and rain pants are useful to make it an enjoyable ride tho :P
I highly recommend a bank-robber style facemask. But I'm regularly dealing with colder temperatures than Seattle.
You mean like a ski mask? Because I instantly imagined someone biking while wearing a Beagle Boys style mask and got confused as to why that would help.
Whatever protects your skin from the elements :)
Note that these are not legal everywhere.
Intent matters. When it’s -20C, it’s fine. When it’s +30C...