Siting an apricot tree - what's the best way to avoid damage from late frosts? [View all]

I have a number of possible sites:

- in an open woodlot - the tree will be shaded by maples and walnuts

- on the north side of a large barn - the area gets sun in the afternoon in summer, there is a hill sloping away from the barn

- open field


I forgot to ask - any recommendations on variety?? - my daughter wants to make dried apricots.