State gas prices rose last week and reached an average of $2.67 per gallon of regular fuel on Monday, up from last week's price of $2.64 per gallon, according to the U.S. Energy Information Administration.

The average fuel price in state declined about 9 cents since last month. According to the EIA, gas prices across the state in the last year have been as low as $2.64 on Nov. 10, 2025, and as high as $3.20 on Sep. 8, 2025.

A year ago, the average gas price in Colorado was 8% higher at $2.89 per gallon.

>> INTERACTIVE: See how your area's gas prices have changed over the years at data.usatoday.com .

The average gas price in the United States last week was $3.06, making prices in the state about 12.9% lower than the nation's average. The average national gas price is essentially uncha

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