The average price of a gallon of unleaded gasoline fell 3.5 cents to $2.413 per gallon for the week ending April 6, according to federal data.

The national gasoline average appears to have resumed its decline after rising prices in February and March that added about 40 cents to the average price. The price is now $1.184 lower than it was a year ago.

Prices fell in eight of the nine regions tracked by the U.S. Energy Information Administration and rise six-tenths of a cent in the Rocky Mountain region to $2.319. The sharpest decline came in the Midwest with a 6.6-cent fall to $2.312. The price fell 4.6 cents to $2.954 on the West Coast.

Among states, California remains at the top of the nation with an average price of $3.151 per gallon. Hawaii is not far behind at $3.12. After Alaska, gasoline in Nevada, Washington and Oregon costs at least $2.70 per gallon on average. Southern states continue to offer the cheapest gasoline with five of the nine states below $2.20 per gallon coming from that region, including Georgia, Louisiana, Arkansas, Alabama, and Mississippi. South Carolina now has the cheapest gasoline at $2.09 per gallon.

Meanwhile, the average price of diesel fell 4 cents to $2.784 per gallon. Diesel is now $1.175 lower than it was a year ago.