The holidays are a little happier for Massachusetts residents who are seeing another steep drop in gas prices.

AAA Southern New England reports Monday that the price of a gallon of self-serve, regular dropped another 11 cents in the past week to an average of $2.57.

That's 30 cents lower per gallon than a month ago and 87 cents lower than at the same time last year.

Yet despite the sharp drop, the price in Massachusetts is 18 cents higher than the national average.

AAA found self-serve, regular selling in Massachusetts for as low as $2.39 per gallon to as high as $2.79.