Western Pennsylvania gas prices fell just a fraction of a penny to $3.65 a gallon this week, according to AAA East Central.
Tuesday's national average price at the pump was $3.52 per gallon, which is the highest price in more than six months. This price is four cents more expensive than one week ago and 17 cents above one month ago, but national prices still average 16 cents per gallon less than the same date last year.
Prices in nearly every state have increased over the last week. Gas prices on the East Coast in particular have been subject to upward pressure from limited ethanol supplies due to logistical challenges. More than 90 percent of the gasoline sold in the U.S. is "E10," which contains up to ten percent ethanol.
AAA expects the national average will peak in late March or early April between $3.55 and $3.75 per gallon, due to seasonal refinery maintenance and the approaching switchover to producing summer-blend gasoline that is required by May 1.
This week's Western PA average price: $3.654
Average price during the week of March 11, 2014: $3.660
Average price during the week of March 19, 2013: $3.787
The following is a list of the average price of unleaded self-serve gasoline in various areas:
$3.607, Du Bois
$3.575, New Castle
$3.697, New Kensington