Gas in Washington averaged $4.13 in 2025 — $4.12 in today’s money
Average, that year
$4.13
In 2025 dollars
$4.12
The average price of a gallon of regular gasoline in Washington across 2025, 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 2025
Weekly average for regular gasoline. The year’s high was $4.54 the week of September 15, 2025; the low was $3.75 the week of January 6, 2025 — a swing of 20.9%.
View the weekly data (52 weeks)
| Week of | Nominal | 2025 $ |
|---|---|---|
| January 6, 2025 | $3.75 | $3.79 |
| January 13, 2025 | $3.76 | $3.79 |
| January 20, 2025 | $3.79 | $3.83 |
| January 27, 2025 | $3.82 | $3.86 |
| February 3, 2025 | $3.85 | $3.88 |
| February 10, 2025 | $3.91 | $3.94 |
| February 17, 2025 | $4.02 | $4.05 |
| February 24, 2025 | $4.01 | $4.04 |
| March 3, 2025 | $4.00 | $4.03 |
| March 10, 2025 | $3.94 | $3.97 |
| March 17, 2025 | $3.92 | $3.95 |
| March 24, 2025 | $3.93 | $3.96 |
| March 31, 2025 | $4.04 | $4.06 |
| April 7, 2025 | $4.22 | $4.25 |
| April 14, 2025 | $4.20 | $4.22 |
| April 21, 2025 | $4.14 | $4.16 |
| April 28, 2025 | $4.10 | $4.12 |
| May 5, 2025 | $4.09 | $4.11 |
| May 12, 2025 | $4.12 | $4.14 |
| May 19, 2025 | $4.18 | $4.19 |
| May 26, 2025 | $4.25 | $4.26 |
| June 2, 2025 | $4.23 | $4.24 |
| June 9, 2025 | $4.20 | $4.21 |
| June 16, 2025 | $4.22 | $4.23 |
| June 23, 2025 | $4.29 | $4.30 |
| June 30, 2025 | $4.30 | $4.31 |
| July 7, 2025 | $4.27 | $4.27 |
| July 14, 2025 | $4.26 | $4.26 |
| July 21, 2025 | $4.26 | $4.26 |
| July 28, 2025 | $4.25 | $4.24 |
| August 4, 2025 | $4.27 | $4.26 |
| August 11, 2025 | $4.31 | $4.30 |
| August 18, 2025 | $4.31 | $4.30 |
| August 25, 2025 | $4.29 | $4.27 |
| September 1, 2025 | $4.29 | $4.26 |
| September 8, 2025 | $4.37 | $4.33 |
| September 15, 2025 | $4.54 | $4.50 |
| September 22, 2025 | $4.51 | $4.48 |
| September 29, 2025 | $4.45 | $4.42 |
| October 6, 2025 | $4.41 | $4.25 |
| October 13, 2025 | $4.36 | $4.20 |
| October 20, 2025 | $4.30 | $4.15 |
| October 27, 2025 | $4.25 | $4.10 |
| November 3, 2025 | $4.17 | $4.13 |
| November 10, 2025 | $4.12 | $4.08 |
| November 17, 2025 | $4.05 | $4.01 |
| November 24, 2025 | $4.04 | $4.00 |
| December 1, 2025 | $4.03 | $3.98 |
| December 8, 2025 | $3.98 | $3.93 |
| December 15, 2025 | $3.87 | $3.82 |
| December 22, 2025 | $3.82 | $3.77 |
| December 29, 2025 | $3.77 | $3.73 |
Year over year
How 2025 compares, adjusted for inflation
2025 was Washington’s 13th-most-expensive year for gas on record, adjusted for inflation — equivalently, the 12th-cheapest of 24 years (2003–2026).
Every grade
Washington fuel prices by grade in 2025
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 | $4.13 | $4.12 | — |
| Midgrade | $4.47 | $4.45 | +33.7¢ |
| Premium | $4.65 | $4.64 | +52.2¢ |
Common questions
Washington gas prices in 2025, answered
- What was the average price of gas in Washington in 2025?
- The average price of regular gasoline in Washington in 2025 was $4.13 per gallon — about $4.12 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 2025?
- Washington's weekly average for regular gasoline peaked at $4.54 the week of September 15, 2025 and bottomed out at $3.75 the week of January 6, 2025 — a swing of 20.9% across the year.
- Were gas prices in Washington higher in 2025 than in 2024?
- Adjusted for inflation, regular gasoline in Washington was cheaper in 2025 than in 2024, down 1.4% year over year.
- How does 2025 rank for gas prices in Washington history?
- Adjusted for inflation, 2025 was the 13th-most-expensive year for regular gasoline in Washington out of the 24 years EIA has published weekly prices (2003–2026).