This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.

CAMARILLO, Calif. (AP) — The average U.S. price of regular-grade gasoline jumped 3 cents over the past three weeks, to $3.25 per gallon.

Industry analyst Trilby Lundberg of the Lundberg Survey says Sunday that gas prices could stop climbing now that crude oil costs have started to fall.

The price at the pump is a dollar higher than it was a year ago.

Nationwide, the highest average price for regular-grade gas is $4.50 per gallon in the San Francisco Bay Area. The lowest average is $2.74 per gallon in Baton Rouge, Louisiana.

According to the survey taken Friday, the average price of diesel was $3.33 a gallon. That’s up 2 cents from three weeks earlier.