I have several pomegranate trees in my yard that were prolific producers of pomegranate fruit. About 4 year ago we had a warm fall... then it went from 80 degrees into the teens in a day. The trees were not dormant so they were hit hard and in spring it was clear they died back significantly. They have grown back to original size but no longer flower/bear fruit. This is the 3rd spring they have not fruited. Any thoughts.
There can be several reasons for the lack of fruit on your trees.
How old are the trees? Are the trees flowering, but not producing fruit? Do you see Bees in the orchard? Do you have other pollinators in the garden?
This article has some more tips.
I would also suggest talking with your County Extension Office. The may have information on the damage suffered in your area and how best to deal with it.
This link will help you locate the nearest office.