One week ago, the national average was $3. 58. One year ago the average price for a gallon of unleaded regular gas in the US was $2.82, which is 84 cents less than today’s price.
The US average for a gallon of diesel gas is currently at $3.98, a 2.5 cent increase from one week ago.
California has the highest gas prices in the continental US. In California, the state average for a gallon of unleaded regular gas is $4.06. The average price for diesel fuel in California is $4.42.
Wyoming has the lowest gas prices in the country, where unleaded fuel is currently $3.41 per gallon. Hawaii has the highest prices in the US, where the average price for a gallon of unleaded is $4.31.
State gas prices have spiked by 22 percent in the first three months of the year and are 30 percent higher than a year ago at this time, primarily because world events have prompted heavy investments in gasoline and oil futures, crude oil and wholesale gasoline, according to AAA of Southern California.