Our bees made it through the worst of the winter (so far!). We had the longest below-freezing period on record for North Carolina, with night-time temps down to -4º one evening. Would the bees survive? We can’t open the hives to check as that would let in cold air.
Bees do not hibernate in winter. Instead, when the temp inside the hive drops to between 54º and 57º they form a bee cluster, and vibrate their flight muscles to generate warmth. That cluster moves around the inside of the hive eating reserve honey stores for food energy. At the center of the cluster it stays a balmy 92º!
Yesterday, the cold spell broke and went up to almost 60º outside, and all four of the hives showed they survived and were out foraging for water and food. Great news!