# Washington Regular Gasoline · Acceleration Index

- Series code: `retail.state_wa.gasoline_regular.weekly.ai`
- Units: pp · frequency: weekly
- Latest: **-0.99 pp** (2026-09-28)
- History: 2003-08-25 to 2026-09-28, 1206 observations
- Change over 1 week: -1.00 (-10,266.0%)
- Change over 1 month: -1.60 (-261.4%)
- Change over 1 year: +1.34 (+57.6%)
- Change over 5 years: -0.23 (-30.5%)
- 52-week range: -3.87 (2026-06-01) – 6.97 (2026-03-09)
- Latest value is higher than 24% of the full history

## Recent observations

| Date | Value |
|---|---|
| 2026-09-28 | -0.99 |
| 2026-09-21 | 0.01 |
| 2026-09-14 | -1.40 |
| 2026-09-07 | 4.16 |
| 2026-08-31 | 0.02 |
| 2026-08-24 | 0.61 |
| 2026-08-17 | 0.92 |
| 2026-08-10 | 0.19 |
| 2026-08-03 | 0.14 |
| 2026-07-27 | 1.64 |
| 2026-07-20 | 2.22 |
| 2026-07-13 | 0.84 |

Source: Calculated by NewTide from EIA source data. Derived from public-domain EIA data.
Page: https://thinkingonenergy.com/data/retail.state_wa.gasoline_regular.weekly.ai/