May 1, 2014 at 10:15 am
ST. CLOUD, Minn. (KNSI) Triple-A Auto Club says the national average price of gasoline this week reached a high of $3.70 a gallon, which was the highest it's been since March 20, 2013.
Gas prices have increased an average of 42-cents per gallon--or 13 percent--since early February.
The national average has increased about 14 cents a gallon in April, which was the largest increase in a single month since 2011.
Gas prices have increased primarily due to relatively tight supplies caused by significant refinery maintenance, the regulated switchover to summer blend gasoline and rising springtime demand.
The national average price of gas is about 18 cebnts a gallon higher than a year ago.
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