New Jersey gas average is at $2.91 today, up approximately $0.89 from a year ago. Today’s Average One Week Ago One Month Ago One Year Ago National $2.88 $2.87 $2.86 $1.77 New Jersey $2.91 $2.87 $2.94 $2.02 Trenton $2.96 $2.94 $3.00 $2.01 Cape May County $2.93 $2.87 $2.99 $2.00 Burlington $2.88 $2.82 $2.92 $1.95 Middlesex, Somerset, Hunterdon […]