PADD 5 diesel price (West Coast) in September 2026
2 official EIA weekly readings available so far
- The average PADD 5 (West Coast) on-highway diesel price in September 2026 was $7.119 per gallon, calculated from 2 EIA weekly readings available so far.
- The weekly low was $6.987; the weekly high was $7.250.
- That monthly average was $0.865 higher than August 2026.
- It was $2.600 higher than September 2025.
This is a calendar-month view of the official EIA weekly West Coast series. It averages only the source weeks listed below, not a separate government monthly estimate.
September 2026 weekly chart
Every EIA week in September 2026
| Week of | $/gal | Change |
|---|---|---|
| $6.987 | ▲+$0.490 | |
| $7.250 | ▲+$0.263 |
← August 2026 · all of 2026 · all West Coast history · monthly CSV
Download the underlying weekly EIA series or see the methodology and source cross-check.