Last year I wrapped up the season on the second to last day of December, if I remember right.
Couldn't fish again until the following year, two days later.
My wife did take a few months off though; about a week and a half after the second pic she landed herself in the hospital for a couple of days; some kind of abdominal issue, I forget what. I admit she'd been gaining weight for about nine months at that point but lost it rapidly after a quick intervention by the doctors. Then she was preoccupied with the follow-up and didn't fish much again for about three months. And when she did finally get back to it, she insisted on bringing this other dude, and she mostly talked to him the whole trip, and he didn't say a word to me...not sure how to feel about that.
Anyway, I've never seen weather cold enough to end my season here, but my wife sure wimped out for around three months this year, so no shame in shutting down for a bit.