I agree with many of the others - go for the 8 yard kilt. Although PA might be considered warm you probably don't have long stretches of temperatures in the high 90's with high humidy, and very little breeze (at least not very often). You could wear a 16 oz, 8 yard kilt more often. Here is mid-Missouri we get long stretches of that hot humid weather, so I tend to stick with 16 oz, 5 yarders. I only have one 8 yarder, and it is 13 oz.

Darrell