Gas in Washington averaged $4.45 in 2023 — $4.71 in today’s money
Average, that year
$4.45
In 2025 dollars
$4.71
The average price of a gallon of regular gasoline in Washington across 2023, shown both as it was at the pump and adjusted for inflation to constant 2025 dollars (CPI-U).
Across the year
How Washington prices moved through 2023
Weekly average for regular gasoline. The year’s high was $4.99 the week of October 2, 2023; the low was $3.70 the week of January 2, 2023 — a swing of 35.0%.
View the weekly data (52 weeks)
| Week of | Nominal | 2025 $ |
|---|---|---|
| January 2, 2023 | $3.70 | $3.96 |
| January 9, 2023 | $3.74 | $4.01 |
| January 16, 2023 | $3.81 | $4.08 |
| January 23, 2023 | $3.91 | $4.19 |
| January 30, 2023 | $3.99 | $4.27 |
| February 6, 2023 | $3.99 | $4.26 |
| February 13, 2023 | $3.98 | $4.25 |
| February 20, 2023 | $4.04 | $4.31 |
| February 27, 2023 | $4.10 | $4.38 |
| March 6, 2023 | $4.10 | $4.37 |
| March 13, 2023 | $4.11 | $4.39 |
| March 20, 2023 | $4.09 | $4.36 |
| March 27, 2023 | $4.09 | $4.37 |
| April 3, 2023 | $4.17 | $4.43 |
| April 10, 2023 | $4.26 | $4.53 |
| April 17, 2023 | $4.37 | $4.65 |
| April 24, 2023 | $4.45 | $4.73 |
| May 1, 2023 | $4.49 | $4.77 |
| May 8, 2023 | $4.47 | $4.74 |
| May 15, 2023 | $4.49 | $4.77 |
| May 22, 2023 | $4.52 | $4.80 |
| May 29, 2023 | $4.57 | $4.85 |
| June 5, 2023 | $4.58 | $4.85 |
| June 12, 2023 | $4.69 | $4.96 |
| June 19, 2023 | $4.77 | $5.05 |
| June 26, 2023 | $4.87 | $5.16 |
| July 3, 2023 | $4.88 | $5.16 |
| July 10, 2023 | $4.86 | $5.13 |
| July 17, 2023 | $4.84 | $5.12 |
| July 24, 2023 | $4.82 | $5.10 |
| July 31, 2023 | $4.85 | $5.13 |
| August 7, 2023 | $4.93 | $5.18 |
| August 14, 2023 | $4.96 | $5.21 |
| August 21, 2023 | $4.96 | $5.22 |
| August 28, 2023 | $4.97 | $5.23 |
| September 4, 2023 | $4.99 | $5.23 |
| September 11, 2023 | $4.97 | $5.21 |
| September 18, 2023 | $4.96 | $5.19 |
| September 25, 2023 | $4.93 | $5.16 |
| October 2, 2023 | $4.99 | $5.23 |
| October 9, 2023 | $4.88 | $5.11 |
| October 16, 2023 | $4.76 | $4.98 |
| October 23, 2023 | $4.66 | $4.88 |
| October 30, 2023 | $4.55 | $4.77 |
| November 6, 2023 | $4.41 | $4.60 |
| November 13, 2023 | $4.33 | $4.52 |
| November 20, 2023 | $4.27 | $4.46 |
| November 27, 2023 | $4.21 | $4.40 |
| December 4, 2023 | $4.15 | $4.33 |
| December 11, 2023 | $4.10 | $4.28 |
| December 18, 2023 | $4.05 | $4.23 |
| December 25, 2023 | $4.00 | $4.17 |
Year over year
How 2023 compares, adjusted for inflation
2023 was Washington’s 7th-most-expensive year for gas on record, adjusted for inflation — equivalently, the 18th-cheapest of 24 years (2003–2026).
Every grade
Washington fuel prices by grade in 2023
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 | $4.45 | $4.71 | — |
| Midgrade | $4.76 | $5.03 | +30.9¢ |
| Premium | $4.92 | $5.20 | +46.4¢ |
Common questions
Washington gas prices in 2023, answered
- What was the average price of gas in Washington in 2023?
- The average price of regular gasoline in Washington in 2023 was $4.45 per gallon — about $4.71 in 2025 dollars after adjusting for inflation, according to U.S. Energy Information Administration weekly data.
- How high did gas prices get in Washington during 2023?
- Washington's weekly average for regular gasoline peaked at $4.99 the week of October 2, 2023 and bottomed out at $3.70 the week of January 2, 2023 — a swing of 35.0% across the year.
- Were gas prices in Washington higher in 2023 than in 2022?
- Adjusted for inflation, regular gasoline in Washington was cheaper in 2023 than in 2022, down 6.5% year over year.
- How does 2023 rank for gas prices in Washington history?
- Adjusted for inflation, 2023 was the 7th-most-expensive year for regular gasoline in Washington out of the 24 years EIA has published weekly prices (2003–2026).