Since you are use to those 3 digit temps, you might want to bring a light jacket along to Philly just in case you get cold
Mig, my dear! I bring a jacket with me everywhere! I have to remember how the weather can be unpredictable hu? Can't bring only shorts and assume it'll be "summery" all the time.
TIS
"Mankind must put an end to war before war puts an end to mankind. War will exist until that distant day when the conscientious objector enjoys the same reputation and prestige that the warrior does today." JFK
I have to remember how the weather can be unpredictable hu? Can't bring only shorts and assume it'll be "summery" all the time. 
