BOSTON (AP) -- The average cost of a gallon of gas in Massachusetts has dropped another 4 cents, and is now down 23 cents in the past month.
AAA Southern New England reports Monday that self-serve, regular is now selling for $3.43 per gallon.
That's still 9 cents per gallon higher that the national average but 45 cents lower than the in-state price one year ago.
AAA found self-serve, regular selling for as low as $3.26 per gallon and as high as $3.65.
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