Gas in Colorado averaged $2.33 in 2015 — $3.16 in today’s money
The average price of a gallon of regular gasoline in Colorado across 2015, shown both as it was at the pump and adjusted for inflation to constant 2025 dollars (CPI-U).
How Colorado prices moved through 2015
Weekly average for regular gasoline. The year’s high was $2.85 the week of August 17, 2015; the low was $1.85 the week of December 14, 2015 — a swing of 54.4%.
View the weekly data (52 weeks)
| Week of | Nominal | 2025 $ |
|---|---|---|
| January 5, 2015 | $2.05 | $2.81 |
| January 12, 2015 | $1.93 | $2.64 |
| January 19, 2015 | $1.87 | $2.56 |
| January 26, 2015 | $1.87 | $2.56 |
| February 2, 2015 | $1.87 | $2.56 |
| February 9, 2015 | $2.01 | $2.75 |
| February 16, 2015 | $2.07 | $2.83 |
| February 23, 2015 | $2.15 | $2.95 |
| March 2, 2015 | $2.19 | $2.99 |
| March 9, 2015 | $2.23 | $3.04 |
| March 16, 2015 | $2.22 | $3.02 |
| March 23, 2015 | $2.20 | $3.01 |
| March 30, 2015 | $2.21 | $3.01 |
| April 6, 2015 | $2.21 | $3.01 |
| April 13, 2015 | $2.24 | $3.06 |
| April 20, 2015 | $2.34 | $3.19 |
| April 27, 2015 | $2.39 | $3.25 |
| May 4, 2015 | $2.47 | $3.36 |
| May 11, 2015 | $2.53 | $3.43 |
| May 18, 2015 | $2.56 | $3.48 |
| May 25, 2015 | $2.58 | $3.51 |
| June 1, 2015 | $2.59 | $3.51 |
| June 8, 2015 | $2.61 | $3.53 |
| June 15, 2015 | $2.64 | $3.58 |
| June 22, 2015 | $2.64 | $3.58 |
| June 29, 2015 | $2.64 | $3.58 |
| July 6, 2015 | $2.65 | $3.59 |
| July 13, 2015 | $2.68 | $3.63 |
| July 20, 2015 | $2.75 | $3.72 |
| July 27, 2015 | $2.79 | $3.78 |
| August 3, 2015 | $2.78 | $3.76 |
| August 10, 2015 | $2.76 | $3.73 |
| August 17, 2015 | $2.85 | $3.86 |
| August 24, 2015 | $2.83 | $3.83 |
| August 31, 2015 | $2.77 | $3.74 |
| September 7, 2015 | $2.69 | $3.64 |
| September 14, 2015 | $2.62 | $3.55 |
| September 21, 2015 | $2.53 | $3.42 |
| September 28, 2015 | $2.44 | $3.30 |
| October 5, 2015 | $2.37 | $3.21 |
| October 12, 2015 | $2.33 | $3.15 |
| October 19, 2015 | $2.26 | $3.06 |
| October 26, 2015 | $2.19 | $2.96 |
| November 2, 2015 | $2.12 | $2.86 |
| November 9, 2015 | $2.06 | $2.79 |
| November 16, 2015 | $2.00 | $2.71 |
| November 23, 2015 | $1.95 | $2.63 |
| November 30, 2015 | $1.91 | $2.58 |
| December 7, 2015 | $1.88 | $2.54 |
| December 14, 2015 | $1.85 | $2.50 |
| December 21, 2015 | $1.88 | $2.54 |
| December 28, 2015 | $1.86 | $2.51 |
2015: Colorado and the national picture
2015 coincided with the global collapse in crude-oil prices. In Colorado, the weekly average for regular gasoline ran from a low of $1.85 (December 14, 2015) to a high of $2.85 (August 17, 2015). Adjusted for inflation, the year’s average of $3.16 ranks 17th-highest in the state’s weekly record.
How 2015 compares, adjusted for inflation
2015 was Colorado’s 17th-most-expensive year for gas on record, adjusted for inflation — equivalently, the 11th-cheapest of 27 years (2000–2026).
Colorado fuel prices by grade in 2015
Year-average price per grade. Premium figures are the spread drivers paid for higher-octane fuel that year.
| Grade | Avg / gal | 2025 $ | vs. regular |
|---|---|---|---|
| Regular | $2.33 | $3.16 | — |
| Midgrade | $2.53 | $3.44 | +20.6¢ |
| Premium | $2.73 | $3.70 | +39.8¢ |
Colorado gas prices in 2015, answered
- What was the average price of gas in Colorado in 2015?
- The average price of regular gasoline in Colorado in 2015 was $2.33 per gallon — about $3.16 in 2025 dollars after adjusting for inflation, according to U.S. Energy Information Administration weekly data.
- How high did gas prices get in Colorado during 2015?
- Colorado's weekly average for regular gasoline peaked at $2.85 the week of August 17, 2015 and bottomed out at $1.85 the week of December 14, 2015 — a swing of 54.4% across the year.
- Were gas prices in Colorado higher in 2015 than in 2014?
- Adjusted for inflation, regular gasoline in Colorado was cheaper in 2015 than in 2014, down 30.2% year over year.
- How does 2015 rank for gas prices in Colorado history?
- Adjusted for inflation, 2015 was the 17th-most-expensive year for regular gasoline in Colorado out of the 27 years EIA has published weekly prices (2000–2026).