The national average for a gallon of gasoline in the United States fell again on Monday to $4.212, according to AAA data. U.S. gasoline prices are down 14.3 cents from last week, and 63 cents from a month ago when gasoline was trading at $4.842. A year ago, gasoline prices were just $3.173 per gallon—meaning that while gasoline prices have come down substantially in recent weeks, the average is still $1.039 more than what it was a year ago. According to GasBuddy’s head of petroleum analysis, Patrick De Haan, gasoline prices have eased for the seventh straight week, falling 15.9 cents a week ago to an average of $4.17 per gallon on Monday. “We continue to see average gas prices falling in every state, with the national average down for the seventh straight week. Even better, nearly 20 states have also seen their average decline to $3.99 or less, […]