Just not a lot.
Charlie Manuel used to have a name for this time of year.
According to science*, as the baseball season crawls from spring to summer and the air gets warmer and thinner, the ball carries further when struck by a bat. Now's the time of year to start using all those solid whacks players have been saving up, with the air density finally in their favor. Ask any of the Phillies; once you remind them what a home run is, they'll probably agree with all of this.
The Phillies are the Atlanta Braves away from being last in most offensive categories - home runs (43), BA (.