I'm in SE Michigan. I bought 2 nucs last May. They seemed to do OK, other than they seemed light/low on honey going into the fall, even though populations in the hive seemed pretty normal. Also, I seemed to be able to keep mites off of them for the most part -- I used Apistan strips and also Apiguard.
I attribute the light weight of the hives to the nasty weather year we had, without a lot of good foraging. Much too cold all summer, kind of dry at times. When there was a good crop of late fall flowers, mostly asters, in October, it was WAY too cold for good flight, most days in the 40's with rain.
I put a lot of dry sugar on them using the Mountain Camp method.
Well, so far, so good. It was around 40 degrees friday and saturday, with clear skies and light winds. They were out taking cleansing flights, and it looked like they did a little housecleaning and threw some deed bees out, but not a lot, just a small handful from each hive. I was actually kind of surprised that they would come out when it was that cold, but the numbers coming and going from each hive seemed decent for that temperature, like there must be a pretty good population alive in each hive.
So, my question is, if they made it this far, what are the odds they'll make it the next four to six weeks before the weather really breaks here?
And, when it does break, if I have some nice days in March, should I medicate them with anything? Stuff for nosema or foulbrood? And, what about pollen supplementation or sugar syrup?