The national average gasoline price fell 3 cents to $2.82 for the week ending Oct. 29, as national gasoline prices have fallen for 16 days in part due to the end of the peak of refinery maintenance season, according to AAA.

Today's price level is 6 cents lower than a month ago and 35 cents more expensive than a year ago. Prices are expected to head higher, said Jeanette Casselano, AAA spokesperson.

"The last few weeks saw peak refinery maintenance season start to wrap-up and push less expensive gas prices, but the lower prices are not likely to be a long-term trend," Casselano said. "AAA expects that gas prices will likely start to increase as early as later this week ahead of the Nov. 4 Iran sanctions announcement and the mid-term elections."

States with the highest price fluctuation since a month ago include Michigan $2.79 (down 20 cents), Iowa $2.68 (down 18 cents), Indiana $2.70 (down 18 cents), Delaware $2.52 (down 17 cents), Oklahoma $2.55 (down 17 cents), Wisconsin $2.74 (down 16 cents), Missouri $2.52 (down 14 cents), Kentucky $2.61 (down 14 cents), Washington $2.53 (up 13 cents), and Kansas $2.62 (down 13 cents).

States with the least expensive gasoline include Delaware ($2.52), South Carolina ($2.52), Missouri ($2.52), Mississippi ($$2.54), Louisiana ($2.54), Texas ($2.55), Oklahoma ($2.55), Alabama ($2.55), Arkansas ($2.56), and Virginia ($2.58).

Meanwhile, the average price of a gallon of diesel fuel fell 2.5 cents to $3.355, which is 53.6 cents higher than a year ago, according to the U.S. Energy Information Administration.