Columbus gas prices have risen once again in the past week, GasBuddy reports.

The latest weekly report from Gas Buddy says that average gasoline prices in Columbus climbed 18.6 cents per gallon in the last week, averaging $4.45 a gallon Monday.

Prices in Columbus are 73.9 cents per gallon higher than a month ago and stand $1.60 per gallon higher than a year ago.

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The national average price of gas has increased 11 cents per gallon in the last week, averaging $4.57 a gallon.

According to GasBuddy, the cheapest Columbus gas station was priced at $4.28 per gallon on Sunday while the most expensive was $4.75 per gallon.