Allen said

" A double brood hive should weigh a MINIMUM of 110 lbs (with normal-type floor and lid) to stand a good 
chance of wintering well in continental North America, north of 40 degrees 
or so".

Living in MN I agree unless you are talking Russian bees that according to the last USDA study only consume 18 pounds during winter. My experience with these bees is a plugged brood nest in spring is a bigger problem from over feeding then starvation.  

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