The bees are still just clustering in their hive keeping warm. Only breaking away from the cluster during the warmer days and then reclustering. December is pretty much the same as November. On warmer days after fresh snows. Don’t be alarmed if you see large numbers of dead bees just outside the hive. They’re just cleaning out the hive and doing cleansing flights.
as the beekeeper, you may want to start planning your spring. Are you going to need to order bees? what hardware do you need to add for new hives and or for repairs of existing hives. Be prepared to place your order in January so that you get timely delivery of all you need.