If this damaged happened in one event then it would be covered but it happened over the course of 2 months so it would be denied. Insurance would consider it wear and tear.
The paint checkering and dots in the second picture look like fading and the clearcoat starting to give up. I'm sure exposure to lots of pollen didn't help though.
If I were you, I wouldn't call the insurance company. Having a claim opened on your account could effect your rates down the line even if there was no payout. Nobody really knows but I wouldn't risk it, insurance companies love every excuse for a rate hike. Heck, it's not even worth calling in a claim if the damage is slightly above your deductible IMHO.
Kind of reminds me of sandstorm claims where a car gets blasted and needs exterior trim, glass, and a refinish but that happens during one event that can be verified with weather reports.