WASHINGTON (USA TODAY) -- Get ready for another round of pain at the pump: $4 (or higher) gasoline.
After rising 19 cents a gallon in the past four weeks, regular unleaded gasoline now averages $3.48 a gallon, vs. $3.12 a year ago and $2.67 in February 2010.
Prices could spike another 60 cents or more by May. "I think it's going to be a chaotic spring, with huge price increases in some places," says Tom Kloza of the Oil Price Information Service. Kloza expects average prices to peak at $4.05, although he and other industry trackers say prices could be sharply higher in some markets.