The average weighted price for gasoline nationwide, including all grades and taxes, was about $1.63 per gallon Friday, according to the Lundberg Survey of 8,000 stations nationwide.
Gasoline cost about $1.52 a gallon on Jan. 24, the date of the last survey.
The average in Phoenix is the lowest, at $1.44. The highest average is in San Francisco, at $1.82, analyst Trilby Lunderg told CBS News Radio.
"The higher prices at the pump follow price hikes for crude oil and home heating oil," said Lundberg.
Over the past two months crude oil prices have risen by $8.19 a barrel to $35.12, largely due to fears of war in the Persian Gulf and the oil production strike in Venezuela, Lundberg said.
Increased production in Venezuela despite the strike, warmer weather in the East and seasonal reductions in the demand for crude oil should keep prices steady in coming weeks, Lundberg said.
The national weighted average price of gasoline, including taxes, at self-serve pumps Friday was about $1.60 per gallon for regular, $1.69 for mid-grade and $1.78 for premium.