COLUMBIA,S.C. (WCIV) - Gas prices are climbing back up as refineries switch over totheir more expensive summer blends.
In SouthCarolina, average prices have risen by 7.6 cents in the last week to an averageof $3.41 per gallon, according to GasBuddy.com. Nationally, prices rose 3.4cents to an average price of $3.59 per gallon.
"Thenational average has zoomed higher in the last week, regaining some upwardmomentum and bringing us to the highest national average so far thisyear," said GasBuddy.com Senior Petroleum Analyst Patrick DeHaan.
Including thechange in gas prices in South Carolina during the past week, prices yesterdaywere 12.9 cents per gallon higher than the same day one year ago and are 21.4cents per gallon higher than a month ago.
The nationalaverage has increased 9.2 cents per gallon during the last month and stands 7.2cents per gallon higher than this day one year ago.
"As weget very near the final shift to summer spec gasoline, we're seeing pricescontinue to creep higher in many communities across the country. GasBuddy lastweek released a forecast for what motorists should expect this summer, and tosummarize, we expect prices nationally between April and September to averageout to $3.52/gal, which would be slightly under the same period lastyear," DeHaan said.