Good news for motorists ahead of Memorial Day weekend: Prices of gas fall everywhere - here's what it costs in your state

Americans hitting the road for Memorial Day weekend face traffic snarl-ups - but at least gas prices are on the decline.

The average cost in the US dropped to $3.58 per gallon last week, down from $3.67 a month ago, according to federal data. That is similar to last year.

It is also about five percent below the typical cost in the run up to Memorial Day, based on the average price each year since 2000.

While regional fuel prices vary due to factors like storms, taxes and refinery maintenance, gas prices have fallen across American over the past month.

'Since the pandemic, the summer driving season has not seen a surge in demand, which can push pump prices higher,' said Andrew Gross, AAA spokesperson.

'So it will be interesting to see if this year bucks that trend. This week's move by the Biden Administration to sell off the million barrel Northeast Gasoline Supply Reserve might help stave off any regional pump price surges, but likely won't move the national average that much.'

Drivers in Las Vegas, the Phoenix area, and Sacramento, California, are seeing some of the largest decreases, according to AAA.

This drop comes just in time for Memorial Day, the unofficial start of the summer road-trip season. 

AAA predicts a record 38.4 million people will travel 50 miles or more by car this weekend.

The nation’s top 10 least expensive markets are Mississippi ($3.06), Arkansas ($3.10), Oklahoma ($3.12), Kansas ($3.13), Louisiana ($3.16), Texas ($3.17), Missouri ($3.20), Tennessee ($3.21), South Carolina ($3.21), and Alabama ($3.24).

The nation’s top 10 most expensive markets are California ($5.15), Hawaii ($4.78), Washington ($4.58), Oregon ($4.34), Nevada ($4.33), Alaska ($4.32), Illinois ($4.01), Arizona ($3.87), Idaho ($3.78), and Pennsylvania ($3.77).