These are two videos of different winter covers and how to install them on the hive.
Winter covers can be put on anytime after November first.
I usually put my covers on around Thanksgiving. But I watch the weather also. If there is going to be several inches of snow, I will run out and cover the hives.
A top entrance is imperative for wintering. If you don't have one, drill a 1" hole like in my previous post.
Wintering a hive, needs at least 8 frames of bees. Meaning at around 45 degrees, the bees would be covering both sides of 8 frames. I say 45 degrees because at that temperature the bees are more concentrated in the hive to get a more accurate judgement on the population strength.
The other winter parameters are a young queen that has not gone through a winter yet. The top box should have eight full frames of honey with the ninth frame partially full, locate this frame in the center of the box. Put two winter patties on the top bars of the top box for emergency late winter feed.
If your honey is under the cluster of bees like in the bottom box. The bees will not go down in the winter. They will end up starving. Also, do not leave any partially filled boxes on top of the hive. The bees may move up into this box, remember what I just said? The bees will not move down. Many new beekeepers do leave partially filled boxes on top, not realizing they are making a potential bad situation.
This is one of the last chores for winter. Then the bees are on their own. A properly prepared hive with a low mite count, has a good chance at winter survival.
Cardboard Snug Fit