For a brief moment, Colorado was home to the cheapest gas in the country. A gas station in the Northern Colorado city of Evans dropped its price for regular unleaded to $1.99 per gallon.

Evans Fast Break temporarily has the cheapest gas prices in the country. CBS

But the deal was short-lived, available for just one day and only for drivers paying with cash.

"It's a relative rarity that we see a pop-up in Colorado," said Patrick De Haan, head of petroleum analysis at GasBuddy. "Colorado has some of the lower gasoline taxes, and we do have a major refinery, the Suncor refinery."

According to GasBuddy, the average price of gas in Colorado is currently $2.79 per gallon, nearly 20 cents below the national average of $2.98. Prices have dropped about 40 cents compared to this time last

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