My guess is that everyone is on winter break. Although I had a few eggs last December, since I don't use supplemental light, my girls pretty much wind up production by late October or mid November. I have one Faverolle who is giving me one or two eggs a week, but even her sister has closed shop for the year.
You could add supplemental lighting through the winter but I allow mine to be natural which means little or no eggs for the winter. I feel they need the break as this is molting season and all energy and nutrients go to feather turn over and thermoregulation for the winter.