Gasoline prices at the pump continue to climb. 20 cents increase was reported throughout the state of California. Average price in Sacramento $4.06 a gallon, up 21 cents over a week ago.A California is now averaging $4.18 up from a week ago which was $4.01. The US Average is $2.65. California authorities say refining adjustments cause the California prices. Gas Buddy says they believe California prices have peaked and should start down.