I am not sure what is going on with yours, Moby. Did you get any normal flowers this year from that cultivar? If it were me because I like testing and growing things just to see, I would evaluate another year.
Yours Mags, I would toss that one. It's hard to attribute that to weather when the symptoms are only on the inner petals and not the outer more exposed to weather sepals.
But... if you thinks that one is just not right, get a load of this one that opened today - Pink Panther with classic viral symptoms.
--- Yick !!!