CHARLESTON, S.C. (WCBD) - The average gasoline prices in South Carolina have fallen 7.8 cents per gallon in the last week, averaging $4.04 a gallon today, according to GasBuddy. However, gas prices in South Carolina are 25.4 cents per gallon higher than a month ago and stand $1.34 per gallon higher than a year ago. [...] ...read more read less