California diesel price in June 2026
5 official EIA weekly readings
- The average California on-highway diesel price in June 2026 was $6.670 per gallon, calculated from 5 EIA weekly readings.
- The weekly low was $6.180; the weekly high was $7.051.
- That monthly average was $0.601 lower than May 2026.
- It was $1.861 higher than June 2025.
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.
June 2026 weekly chart
Every EIA week in June 2026
| Week of | $/gal | Change |
|---|---|---|
| $7.051 | ▼−$0.131 | |
| $6.940 | ▼−$0.111 | |
| $6.713 | ▼−$0.227 | |
| $6.468 | ▼−$0.245 | |
| $6.180 | ▼−$0.288 |
← May 2026 · July 2026 → · all of 2026 · all California history · monthly CSV
Download the underlying weekly EIA series or see the methodology and source cross-check.