The average price of a gallon of self-serve regular gasoline in Los Angeles County rose four-tenths of a cent Wednesday to $5.646, after decreasing 13 times in the previous 15 days.
The average price is 1.1 cents less than one week ago, but 11.4 cents more than one month ago and $1.17 more than one year ago, according to figures from the AAA and Oil Price Information Service.
It has increased 95.2 cents since the start of the joint U.S./Israel attack on Iran on Feb. 28, which sent oil prices higher and drastically accelerated increases at the gas pump.
The Orange County average price increased eight-tenths of a cent to $5.583. It is 1.4 cents less than one week ago, but 11.4 cents more than one month ago and $1.138 more than one year ago.
The Orange County average price has increased 94.7 cents since the start of the attack on Iran.
The national average price rose 2.1 cents to $4.086. It is 5 cents more than one week ago, 8.9 cents more than one month ago and 95.6 cents more than one year ago, and has increased $1.104 since the attack on Iran.
The national average price is at its highest amount this late in the calendar year, according to Patrick De Haan, head of petroleum analysis at GasBuddy, which provides real-time gas price information from more than 150,000 stations.