West Coast less California diesel price in October 2026
3 official EIA weekly readings available so far
- The average West Coast less California on-highway diesel price in October 2026 was $6.551 per gallon, calculated from 3 EIA weekly readings available so far.
- The weekly low was $6.490; the weekly high was $6.659.
- That monthly average was $0.028 lower than September 2026.
- It was $2.490 higher than October 2025.
This is a calendar-month view of the official EIA weekly West Coast less California series. It averages only the source weeks listed below, not a separate government monthly estimate.
October 2026 weekly chart
Every EIA week in October 2026
| Week of | $/gal | Change |
|---|---|---|
| $6.490 | ▼−$0.153 | |
| $6.503 | ▲+$0.013 | |
| $6.659 | ▲+$0.156 |
← September 2026 · all of 2026 · all West Coast less California history · monthly CSV
Download the underlying weekly EIA series or see the methodology and source cross-check.