That's interesting. This is may second winter. Like the previous year, I started chicks in the early spring, got a few eggs starting in September or October, and they never completely stopped in the winter. I have gotten 1 or 2 most days through the winter these last two years. The occasional zero egg day. Being a beginner, I assume it's not due to skill or wisdom. No lights in the coop either. Dumb luck I'm sure.
Some luck is involved, mainly because you can't really control when birds are going to molt or how well they'll lay without supplemental light. Plus I only have 7 birds right now (1 is a dud, so 6 actual layers), so chances of getting no eggs on a random winter's day is higher.
This year I started saving up eggs in September. I lucked out and one of my younger hens continued to lay at a reduced rate until January, when she molted hard and stopped laying. But obviously we've gone through all the stored up eggs as well as the fresher eggs.