The average price of a gallon of self-service regular gasoline in Riverside County rose two-tenths of a cent Monday to $4.337, a day after rising one-tenth of a cent. The average price is 1.5 cents more than one week ago, but 7.6 cents lower than one month ago and 49.8 cents less than one year ago, according to figures from the AAA and Oil Price Information Service. It has dropped $2.036 since rising to a record $6.373 on Oct. 5, 2022.