According to the Lundberg Survey released Sunday, the average nationwide for a gallon of regular is now $3.52. The average price for midgrade gasoline is $3.83 and premium is $3.88.
Of cities surveyed in the Lower 48 states, the lowest price, $3.19, was in Jackson, Mississippi.
San Francisco had the highest price at $3.95.
In California, prices for a gallon of regular dropped 9 cents to $3.86.
The lowest price, $3.76, was in Bakersfield.
The survey says the average U.S. price of regular grade gasoline dropped a total of 19 cents over the past seven weeks.