Hey RejectedSoldier;
Yes, BMQ is held through the winter, normally in St. Jean 2-3 courses start each week, there are some weeks that will not start any courses though and that will be because it is starting or ending too close to Christmas or the Mega is overloaded. Some courses cancelled the weekend off between week 11 and week 12 in the field so the course could graduate before Christmas block leave and not have to come back for a week after leave.
If you are in the field, during week 11, and it is in -0 weather you will not sleep in hooches, you will have to set up 10 man tents, have fun doing pull-pull with that!! Anyway, if it is -32 (I think that was the cut off) then you stay in tents to do classes, I am not sure about your missions during week 12, there are a required number to be done daily and some courses would head from one mission directly to the next to take advantage of the "nice" weather during daylight. Week 12 is spent in a FOB (forward operating base) with mod tents set up before you arrive.
Have fun and good luck, being out there during the snow sucks! Also, the morning runs in sleet, freezing rain, snow, blizzards, etc are especially fun! :crybaby: