Originally Posted by IndianaHoney
I've not done this myself, but have heard that it is an advantage as the side by side nucs can share warmth.
I've found in my own experience that combining to make strong hives in the late fall gives me better success than trying to over winter with a larger quantity of weaker/smaller hives. I'll be combining any hives that are not a full box by themselves by mid/end of October here.
You might try combining some and then using others as side by side nucs in a deep with divider board. Let us know which ones make it best into the spring.
Best of luck to ya
Living in 95901 area code near Marysville, CA