The Memorial Day holiday weekend is nearing, and that means rising gas prices.

Gas prices jumped 10 cents to 20 cents a gallon Wednesday in Grand Forks and East Grand Forks and have risen 20+ cents a gallon in Park Rapids over the past 10 days, climbing from $2.15 a gallon to $2.39.

An informal survey by the Herald listed the price for a gallon of regular unleaded as low as $2.30 and as high as $2.40.

North Dakota AAA spokesman Gene LaDoucer said the increase leading up to the summer driving season is typical. Last year, for example, many areas had gas prices as high $3.75 a gallon.

Nationally, the price of gasoline in the U.S. jumped 25 cents a gallon during the past three weeks but remains well below prices from a year ago. That's according to the national Lundberg Survey of fuel prices released Sunday.

The lowest price for gasoline in the U.S. was found in Phoenix, at $1.99 a gallon. The highest was in Chicago, at $2.63.