With the US national average price for one gallon of gas having witnessed a 13-percent drop to $3.63 this past week, Oil Price Information Services (OPIS) analyst Fred Rozell has pointed out that the last week gas prices decline marked the biggest weekly fall since the week which ended November 28, 2008.

Despite the fact that that the fall in average gas prices at the US pumps is largely an upshot of a plunge in oil prices, increase in gas supplies, and the refineries' switch to lower-cost `winter blends' of gas, the currently-prevailing gas prices are still higher-ever prices for this time of the year.

The earlier record for the highest average gas prices in the US at this time of the year was reported last year, when, on October 23, the average per gallon cost of gasoline had touched $3.46.

About the gas prices average so far this year, Rozell said that gasoline has averaged at $3.65; thereby marking a figure which is 10 cents higher than the record-high average witnessed in 2011.

Meanwhile, drawing attention to the fact that "the 2011 prices were already a record for this time of year," Marie Montgomery - spokeswoman for Southern California's Automobile Club - said that though the average gas prices had fallen of late, they still continue to be "a lot higher than they were last year."