Interesting Phil, your always thinking!! Food for thought:
I could easily raise queens in February. However, I look for the drones which take about 3 weeks+ to hatch and another 2 weeks to mature. That is well over a month. So for me, queen rearing is based on my drones.
My queens begin to lay bees in January, not much, but I always figure January is beginning brood month. So I always treat for mites in December as January is to late, If we have a chinook in January with a warm night AND a warm day you can open a hive and see for yourself if there is a patch of brood.
January laying is geographically dependent, weather dependent and species dependent. A chinook will tell you, when and if we have one. This is what I plan on: January brood in my area, N. Arkansas but is by no means a for certain. As most years I cannot check.
Blessings
Van
Blessings