I checked the first hive a week before Christmas it was around 70 degrees. I'm guessing that they starved to death even though I had a full super of Honey above them they had some capped brood and from what I understand they won't leave brood to go get the honey. so what I did was I took that full super of honey and put it on my other hive which didn't have a lot of honey. When I did that I saw that there wasn't a lot of bees in there so I'm guessing that they froze to death last week when we had - 2 degree temperatures. It really sucks I spent a lot of money on those bees in the spring and I can't afford to buy any this year so I'm going to be depending on catching some swarms. Last year I caught four swams but two of them came from my hives.