(Dover, NH) - According to AAA, the national average price is now $2.81 a gallon, the highest since 2014.

Getty Images Joe Raedle

AAA says that 16 per cent of the gas stations nationwide are already charging $3 or more per gallon of regular. Today's announcement on possible sanctions on Iran could drive prices higher.

Gasbuddy reported that the average price in New Hampshire was $2.74 a gallon as of Sunday.

That price is 17 cents higher than a month ago, and 43 cents higher that it was a year ago.