Despite recent increases, Americans are likely to pay the lowest summertime gas prices since 2009, when the nation was engulfed in financial crisis, according to AAA. In a report, AAA said that U.S. average gasoline prices of $2.75 a gallon on June 1 were up 71 cents per gallon nationwide since late January. But as of June 1, the national average was still down 92 cents from a year ago. The Energy Information Administration, the statistical arm of the U.S. Energy Department, estimated that the week leading up to Memorial Day saw the highest demand for gasoline since August 2007. It suggests lower fuel prices are enticing Americans to take road trips, something AAA’s own surveys suggest to be the case as long as pump prices remain low by historical standards. “I think there is going to be one more price spike before summer is over,” said Phil Flynn, a veteran energy analyst for the Price Futures Group in Chicago, who thinks more driving by American motorists will also put upward pressure on prices. “We are seeing signs that prices after Memorial Day are not going to back off as much as anticipated.”