Average retail gasoline prices in Atlanta have risen 10.7 cents per gallon in the past week, averaging $3.42/gal yesterday. This compares with the national average that has increased 4.9 cents per gallon in the last week to $3.49/gal, according to gasoline price website AtlantaGasPrices.com. Including the change in gas prices in Atlanta during the past week, prices yesterday were 34.3 cents per gallon lower than the same day one year ago and are 18.3 cents per gallon higher than a month ago.