Triple A says Florida gas prices have jumped 14 cents in the past week – 25 cents in 10 days. After selling for nearly $2.23 per gallon – just 10 days ago – the average price for a gallon of gasoline in Florida is now up to nearly $2.50. Mark Jenkins spokesman Triple A for said maintenance season is underway for refiners along the Gulf Coast have also begun sending out summer-blend gasoline, which is more expensive to produce. The national average is expected to peak at around $2.75 by Memorial Day.