Name: Sandy B. Ford River Twp, Michigan UP (Zone 4b) (Zone 4b-maybe 5a)
Well, I'd certainly say it isn't "normal."
@Maxcaviar , how is your plant looking now? Are the newer leaves also affected, or are they okay? If so, I'm thinking it was probably just sunburn on the leaves in the photo.
“Think occasionally of the suffering of which you spare yourself the sight." ~ Albert Schweitzer C/F temp conversion