The reason for Chicago being named the windy city is because of back in the 1800's, a newspaper said that Chicagoans were braggarts and blowhards. Basically stating that the politicians here blow a lot of wind when they talk. The term has kind of snowballed since then.
I was just going by watching all of those Bears Packers games where the Chicago fans were sitting in Soldier Field breathing snow on the back of the guy in front of them.
This probably answers the question of the what is in the water in Simpsonville SC too, it is just plain warmer there!