Photo by Michael Cummo

Gas prices in Massachusetts continue to drop lower, falling 6 cents over the past week to an average of $3.26 per gallon, the State House News service reported. The average price is down 17 cents a gallon from a month ago and is 12 cents lower than a year ago at this time, according to survey results released Tuesday morning by AAA of Southern New England. “Low demand combined with abundant supply has kept downward pressure on global oil prices, which is translating into lower prices for motorists at the pump,” Mary Maguire, AAA Southern New England Director of Public and Legislative Affairs, said in a statement. AAA found prices as low as $3.05 per gallon and as high as $3.53 per gallon.

However, on Martha’s Vineyard the price was about $4.20 per gallon on Tuesday.

The decline in what motorists are paying at the pump is coming in the weeks leading up to a statewide vote on whether to repeal the 2013 law indexing the 24-cent per gallon state gas tax to inflation to allow automatic increases.