Honey Bees stop flying when the temperature drops down into the 50s (F). They stay inside their hive in what is called a winter cluster which means they get into a big huddle. There is no point to flying outside of the hive as there are no flowers in bloom, hence no pollen or nectar is available and the cold could kill them. The colder the outside temperature, the more compact the cluster becomes.
The object of this clustering is to keep themselves warm, so warm that the temperature in the centre of this cluster, where the Queen Bee stays, is kept at about 80 (F). The outer edge of the cluster is about 46 to 48 (F).
The worker bees create heat by shivering and they also move back and forth between the inner part of the cluster and the outer part. In this way no bee will freeze.





