Would be the first Cat 5 since the scale was invented to hit the US. At least that is what I seem to remember.
Andrew in 1992 was upgraded to a Cat 5 based on a review after the hit on Homestead, FL. Hugo was a 5 as well (1985). Don't know when the scale became widely used.
Andrew was a cat 5, had it not taken out the meauring equipment at the NHC - I think it was a cat 5.
I'm pretty sure that Camille in 1969 was a Cat. 5.
