The average price for gasoline in Massachusetts is $3.839 a gallon in the latest weekly survey from AAA, down 5 cents from the previous week’s average, AAA Southern New England said Monday.

Prices locally are down 7 cents over the past month.

The current national average is $3.78 a gallon, AAA said.

A year ago at this time, the the Massachusetts average price was $3.42.

AAA’s weekly surveys focus on self-serve, regular unleaded gasoline.