Gas prices are hitting a new low for the year, and the downward trend is expected to continue, according to AAA. The average price on a gallon of gas in the L.A.-Long Beach area on Monday was $3.52, down from $3.75 last month. In Orange County, the average price was $3.50, down from $3.72 last month. In the Riverside-San Bernardino area, the average was $3.48, and in Ventura, the average was $3.50. California has the highest gas prices in the continental U.S. According to Gas Buddy, the national average is $3.12, the lowest since Jan. 18, 2011.