For a place where it never snows (well, hardly ever -- I saw some flakes once in the '70s), San Franciscans frequently build their their holiday decorations in snow motifs.
Perhaps because I come from a place where winter snow is the norm -- and then some -- I find this a little odd.
If you don't have snow, I guess you can treat the white stuff as merely an opportunity for damp creativity.
Or warm fuzzies ...
All from one unexceptional San Francisco precinct encountered while Walking.