NEW YORK -- U.S. drivers will pay an average of 24 cents more per gallon for gasoline during this summer's travel season, the government says.

The Energy Information Administration says gasoline will cost an average of $3.95 per gallon from April through September, an increase of 6.3 percent from the same period last year. The peak monthly average should be $4.01 in May.

Nationally, gas price averages sit at $3.92 a gallon, which is unchanged from one week ago. One year ago it was $3.77 -- already an increase of 15 cents.

Washington's average is much higher, reaching $4.13 on Tuesday (an increase of one cent compared to last week).

Seattle average gas price is still higher, at $4.17 a gallon, also an increase of one cent from a week ago.

Click here for AAA's state-by-state gas price averages

The government says there's a small chance the price for a gallon could climb as high as $4.50 in June.

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Costs are rising with the price of crude oil, the main component in gasoline and other fuels.

Americans have responded to high prices by using less gasoline. But because gas has risen so quickly, they're still expected to spend $250 more on average per household for gas this year.

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