The average price of regular gasoline in Massachusetts is $3.152 a gallon, up slightly from $3.144 last week, according to AAA of Southern New England.
A year ago, regular gas cost an average of $2.694 per gallon.
The current national average for regular is $3.122 a gallon.
The current averages for mid-grade and premium are $3.264 and $3.375, respectively, and diesel costs $3.59.
