By Matt Egan, CNN Business

(CNN) — The gas price spike keeps getting worse.

The national average jumped to $4.87 a gallon on Monday, according to AAA. That’s up 25 cents in the past week and 59 cents in the past month.

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There are now 10 states where the average price of gasoline is $5 a gallon or higher, with the latest being Michigan and Indiana. Washington, DC, is also above $5.

New Jersey, Pennsylvania and Massachusetts are just pennies away. Georgia is the only state with an average below $4.30 a gallon.

Unfortunately, prices could continue to climb.

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Veteran oil analyst Andy Lipow told CNN he expects the national average to hit $5.05 a gallon in the next 10 days.

Oil, the biggest component of gasoline prices, continues to get more expensive — even after OPEC announced plans late last week to ramp up production. US crude jumped to a fresh three-month high of $120.99 a barrel Monday morning.

Mark Zandi, chief economist at Moody’s Analytics, told CNN in a phone interview that he is feeling more optimistic about the ability of the US economy to get inflation under control without causing a downturn. But Zandi said the one catch would be a further spike in oil prices.

“If oil prices go to $150, we are going into recession. There is no way out,” Zandi said.

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