National Gas prices drop about 10 cents over past 3 weeks - | News for Yuma, Imperial Valley, El Centro, AZ & CA

CAMARILLO, Calif. (AP) - The average U.S. price of a gallon of gasoline has dropped 10 cents over the past three weeks.

That's according to the Lundberg Survey of fuel prices, released Sunday, which puts the price of a gallon of regular at $3.38.

Midgrade costs an average of $3.55 a gallon, and premium is $3.69.

Diesel dipped 2 cents to $4.02 a gallon.

Of the cities surveyed in the lower 48 states, Memphis, Tenn., has the nation's lowest average price for gas at $3.04. Long Island, N.Y. has the highest at $3.85.

In California, the lowest average price was $3.42 in Stockton and the highest was $3.73 in Bakersfield. The average statewide for a gallon of regular was $3.52, down a dime.