Do trees that go dormant in winter need sun?

I'm planning to plant a couple of apple trees in my yard, and one otherwise ideal spot gets a good 7 hours of sun 8-9 months of the year, but because of some tall trees to the south, is in dappled shade all day from mid November to February. I'm in north Florida. So: do deciduous trees need sun when they have no leaves?

On very rare occasions they do but when it comes to your fruit trees it's ok if they are in shade when dormant.

make sure you get low-chill varieties of fruit trees.
loquats, persimmons, and a few others do not need chilling.

It's fine. In nature deciduous trees are often covered in snow for months on end.

Thanks for the replies. I have two apple varieties: Anna, developed in Israel, and Dorsett Golden. Also a peach tree, Flordaking. All require less than 200 chill hours, suitable for my part of North Florida, or so I'm told.