California diesel price in October 2025
4 official EIA weekly readings
- The average California on-highway diesel price in October 2025 was $4.936 per gallon, calculated from 4 EIA weekly readings.
- The weekly low was $4.898; the weekly high was $4.971.
- That monthly average was $0.026 lower than September 2025.
- It was $0.222 higher than October 2024.
This is a calendar-month view of the official EIA weekly California series. It averages only the source weeks listed below, not a separate government monthly estimate.
October 2025 weekly chart
Every EIA week in October 2025
| Week of | $/gal | Change |
|---|---|---|
| $4.971 | ▼−$0.010 | |
| $4.940 | ▼−$0.031 | |
| $4.898 | ▼−$0.042 | |
| $4.934 | ▲+$0.036 |
← September 2025 · November 2025 → · all of 2025 · all California history · monthly CSV
Download the underlying weekly EIA series or see the methodology and source cross-check.