I don’t think I’ve lived through a season that was considered by most to be ‘normal’. There are always swings and anomalies, dotted by snow storms and hurricanes - and I live by the water. And whereas 'why’s cannot be changed, as a grower I’m compelled to collect tools and methods for ‘what to do when’, because ‘when’ happens. Whatcha gonna do when ‘when’ happens?
I’ve gleaned much info on this forum from the '**when’**s that happened to others. It is always unexpected. I offered one possible remedy earlier in this post that I happened to see at a garden center. Not tried it, but might just to see if it would work. Diluted ammonia is another option I’d try if faced with frost on blooms. Not as huge a loss for me as it would be for others here, but my nagging curiosity won’t let me ignore it. Good to know we have options to try at least.