Fog is not like Spring. Fog has its own seasons; winter fog is just evil, or at least uncaring.
Spring fog = Umm, smell that? Spring!
Summer fog = Why is it so muggy in here? <looks out window> Crap!
Fall fog = Umm, smell that? Fall!
Winter fog = ohmigawd, ohmigawd, ohmigawd I AM SO FREAKIN’ COLD IT IS EATING THROUGH MY COAT I CAN’T FEEL MY FINGERS MY FEET ARE BLOCKS OF ICE is that coffee gimmee!