Here are a few of the things I did to try to help them survive to spring:
- moved hive to open ended garage to keep out of rain/snow/wind
- stapled tar paper around hive
- wrapped hive in old army surplus blanket and wrapped bungee cords to keep it close
- setup an automatic temperature sensitive power cord with a reptile cage heater to see if that helps. the power turns on at 35F.
The temperature sensitive power plug and heater: