CONCORD, N.H. – Gas prices have gone up slightly across northern New England.

GasBuddy surveys show the average retail price in Maine is $2.37, up less than half a penny from the week before.

New Hampshire is $2.29 per gallon, up nearly a penny in the last week.

The average price per gallon in Vermont is $2.34, up less than half a cent from last week.

The national average of $2.36 has increased 7.5 cents during the last month but remains 39.5 cents per gallon lower than this day one year ago.

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