As we begin a new week, so too do we begin another round of gas price fluctuations. On Sunday, the national average for a gallon of regular stood at $3.14… up about 4 cents in the past week. In Pennsylvania, the average for a gallon of regular grade gas on Sunday was around $3.38. That too is an increase from the week before… about three cents higher according to AAA. The average price in Lewistown on Sunday stood at $3.34. The average price of diesel locally right now is about $4.37 a gallon.