Peonies have such amazing blooms and for such a short period of time that unexpected damage like that is particularly disappointing. I'm sorry you had to experience it. None of the peonies in my neighborhood had blooms this year, maybe because of the exceptionally mild winter, which was disappointing too, but nothing like losing actual buds and blooms to wild weather. Last year's heat and drought down here badly affected everything and took out a whole bunch of plants I thought were really tough. Surprisingly, it was the clematis and peonies that sailed through with minimal attention. Whodathunkit?