Certified GKH Gardening Expert
You can unwrap it once temps generally are above 40 degrees F. If you get a few frosts after that, it will not harm the plant.
Some figs can survive in your zone. It depends on the variety. I would still wrap it if I were you, as a precaution. The figs that can survive in your area will survive a normal winter, but cannot survive a severe winter without help. Since you cannot know ahead of time which winters will be severe, it is better to be safe rather than sorry.