Gas in Colorado averaged $3.49 in 2026 — $3.39 in today’s money
Average, that year
$3.49
In 2025 dollars
$3.39
The average price of a gallon of regular gasoline in Colorado across 2026, shown both as it was at the pump and adjusted for inflation to constant 2025 dollars (CPI-U). Figures for 2026 are year-to-date (30 weeks so far).
Across the year
How Colorado prices moved through 2026
Weekly average for regular gasoline. The year’s high was $4.62 the week of May 18, 2026; the low was $2.19 the week of January 5, 2026 — a swing of 111.1%.
View the weekly data (30 weeks)
| Week of | Nominal | 2025 $ |
|---|---|---|
| January 5, 2026 | $2.19 | $2.16 |
| January 12, 2026 | $2.26 | $2.23 |
| January 19, 2026 | $2.38 | $2.35 |
| January 26, 2026 | $2.47 | $2.44 |
| February 2, 2026 | $2.49 | $2.45 |
| February 9, 2026 | $2.68 | $2.64 |
| February 16, 2026 | $2.70 | $2.66 |
| February 23, 2026 | $2.58 | $2.53 |
| March 2, 2026 | $2.81 | $2.74 |
| March 9, 2026 | $3.44 | $3.36 |
| March 16, 2026 | $3.80 | $3.70 |
| March 23, 2026 | $3.86 | $3.76 |
| March 30, 2026 | $3.76 | $3.67 |
| April 6, 2026 | $3.70 | $3.58 |
| April 13, 2026 | $3.68 | $3.57 |
| April 20, 2026 | $3.81 | $3.69 |
| April 27, 2026 | $3.93 | $3.81 |
| May 4, 2026 | $4.35 | $4.19 |
| May 11, 2026 | $4.26 | $4.10 |
| May 18, 2026 | $4.62 | $4.45 |
| May 25, 2026 | $4.54 | $4.38 |
| June 1, 2026 | $4.20 | $4.06 |
| June 8, 2026 | $3.98 | $3.86 |
| June 15, 2026 | $3.95 | $3.82 |
| June 22, 2026 | $3.67 | $3.55 |
| June 29, 2026 | $3.56 | $3.45 |
| July 6, 2026 | $3.52 | $3.40 |
| July 13, 2026 | $3.72 | $3.60 |
| July 20, 2026 | $3.90 | $3.78 |
| July 27, 2026 | $4.00 | $3.87 |
Year over year
How 2026 compares, adjusted for inflation
vs. prior year · 2025
+18.6%
2025 averaged $2.86 in 2025 dollars.
vs. following year
No later year on record.
2026 was Colorado’s 13th-most-expensive year for gas on record, adjusted for inflation — equivalently, the 15th-cheapest of 27 years (2000–2026).
Every grade
Colorado fuel prices by grade in 2026
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 | $3.49 | $3.39 | — |
| Midgrade | $3.88 | $3.77 | +39.0¢ |
| Premium | $4.22 | $4.10 | +72.8¢ |
Common questions
Colorado gas prices in 2026, answered
- What was the average price of gas in Colorado in 2026?
- The average price of regular gasoline in Colorado in 2026 was $3.49 per gallon — about $3.39 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 2026?
- Colorado's weekly average for regular gasoline peaked at $4.62 the week of May 18, 2026 and bottomed out at $2.19 the week of January 5, 2026 — a swing of 111.1% across the year.
- Were gas prices in Colorado higher in 2026 than in 2025?
- Adjusted for inflation, regular gasoline in Colorado was more expensive in 2026 than in 2025, up 18.6% year over year.
- How does 2026 rank for gas prices in Colorado history?
- Adjusted for inflation, 2026 was the 13th-most-expensive year for regular gasoline in Colorado out of the 27 years EIA has published weekly prices (2000–2026).