# California Diesel · Acceleration Index

- Series code: `retail.state_ca.diesel_all.weekly.ai`
- Units: pp · frequency: weekly
- Latest: **-2.56 pp** (2026-09-28)
- History: 1995-10-02 to 2026-09-28, 1618 observations
- Change over 1 week: -3.50 (-372.7%)
- Change over 1 month: -4.46 (-234.8%)
- Change over 1 year: -2.82 (-1,110.3%)
- Change over 5 years: -2.27 (-776.0%)
- 52-week range: -7.36 (2026-06-01) – 22.34 (2026-03-09)
- Latest value is higher than 5% of the full history

## Recent observations

| Date | Value |
|---|---|
| 2026-09-28 | -2.56 |
| 2026-09-21 | 0.94 |
| 2026-09-14 | 0.07 |
| 2026-09-07 | 7.80 |
| 2026-08-31 | 0.80 |
| 2026-08-24 | 1.90 |
| 2026-08-17 | 1.60 |
| 2026-08-10 | -1.86 |
| 2026-08-03 | -0.17 |
| 2026-07-27 | 1.31 |
| 2026-07-20 | 6.20 |
| 2026-07-13 | 3.08 |

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