The average price of a gallon of self-serve regular gasoline in Riverside County rose one-tenth of a cent Tuesday to $3.459, its highest amount since Aug. 31, 2015.
The average price has increased 15 consecutive days, rising 9.1 cents, including a half-cent on Monday, according to figures from the AAA and Oil Price Information Service.
The average price is 6.1 cents more than one week ago, 9.8 cents higher than one month ago and 49 cents greater than one year ago.
The average price has risen 36.4 cents since the start of the year.