Gas prices remain slightly above the national median in Pennsylvania. As reported by Triple-A yesterday, the average price for a gallon of regular unleaded fell slightly to four dollars, 82 cents compared to the latest national average, which stood at four 72. South Carolina and Georgia remain home to the nation’s lowest gas prices, both posting average per-gallon prices of four 23. To no one’s surprise, California motorists continue to pay most at the pump. Yesterday’s state average fell slightly to settle at just over six bucks, 14 cents per gallon.