Many catfish 12 months out of the year. Myself, I most often quit fishing about mid November when my interest turn to other outdoor pursuits. If we are lucky enough to get safe ice in my area in Dec. - Feb. I really like ice fishing but for the most part with the exception of an occasional channel I only put pan fish on the ice.
I fish year round. Usually during winter I'm primarily fishing for trout but on a nice witer day I'll go try for cats. When the spawn is on I switch over to whatever else is biting, I chase bowfin and gar a lot then.