West Coast less California diesel price in December 2025
5 official EIA weekly readings
- The average West Coast less California on-highway diesel price in December 2025 was $3.865 per gallon, calculated from 5 EIA weekly readings.
- The weekly low was $3.719; the weekly high was $4.026.
- That monthly average was $0.278 lower than November 2025.
- It was $0.166 higher than December 2024.
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.
December 2025 weekly chart
Every EIA week in December 2025
| Week of | $/gal | Change |
|---|---|---|
| $4.026 | ▼−$0.082 | |
| $3.944 | ▼−$0.082 | |
| $3.871 | ▼−$0.073 | |
| $3.766 | ▼−$0.105 | |
| $3.719 | ▼−$0.047 |
← November 2025 · January 2026 → · all of 2025 · all West Coast less California history · monthly CSV
Download the underlying weekly EIA series or see the methodology and source cross-check.