Next year it will be a different story. up north here in w ma the 21 you have now at 10:25 p m was considered balmy. cleared snow in run girls did not like it and it would cause problems with legs and feet. coop un-insulated, draft free with plenty of air circulation. With cfls to extend daylight production did not drop off. cold they could live with, puffed out and huddled together. kind of like us