The average price of a gallon of self-serve regular gasoline in San Diego County rose Monday for the 28th consecutive day, increasing four-tenths of a cent to $4.043, its highest amount since July 30, 2015.
The average price has risen 34 of the past 35 days, increasing 72.1 cents, including 1.5 cents on Sunday, according to figures from the AAA and Oil Price Information Service.
It is 21.1 cents more than one week ago, 70.5 cents higher than one month ago and 46.7 cents greater than one year ago.
The recent sharp increases are the result of a series of refinery issues that have reduced supply, according to Jeffrey Spring, the Automobile Club of Southern California's corporate communications manager.