Retail gasoline prices in the United States are continuing to rise, and are up 4.6 cents from a week ago, according to GasBuddy data. The national average is still down 1 cent from a month ago, but nearly 20 cents higher from this point last year. The national average for a gallon of gasoline is $3.83 per gallon as of Sunday, GasBuddy data shows. The reason behind the rise is refinery outages in the western United States, but relief may soon be coming for some. “With the transition back to cheaper winter gasoline now upon us in nearly every…