The bees will be in a rugby ball size cluster in the hive living off their stores. A bee will occasionally go outside to defecate to keep the hive clean. You should not disturb them.
The bees will still be in their cluster, keeping as warm as possible in their cluster.
The bees will be in a cluster however the queen will start to lay a few eggs. You should not disturb your bees - but start to get your equipment ready for the start of the season in March.