Virginia gas prices have fallen 4.0 cents per gallon in the past week, averaging $2.50/g today, according to GasBuddy’s daily survey of 4,081 stations. Gas prices in Virginia are 12.0 cents per gallon lower than a month ago, yet stand 19.9 cents per gallon lower than a year ago. According to their website, the Valero and Daytona on South Memorial Boulevard and the Liberty Market on Liberty Street all have the least expensive gas in the area at $2.35 per gallon.