PADD 4 diesel price (Rocky Mountain) in January 2026
4 official EIA weekly readings
- The average PADD 4 (Rocky Mountain) on-highway diesel price in January 2026 was $3.255 per gallon, calculated from 4 EIA weekly readings.
- The weekly low was $3.185; the weekly high was $3.367.
- That monthly average was $0.162 lower than December 2025.
- It was $0.181 lower than January 2025.
This is a calendar-month view of the official EIA weekly Rocky Mountain series. It averages only the source weeks listed below, not a separate government monthly estimate.
January 2026 weekly chart
Every EIA week in January 2026
| Week of | $/gal | Change |
|---|---|---|
| $3.222 | ▼−$0.011 | |
| $3.185 | ▼−$0.037 | |
| $3.246 | ▲+$0.061 | |
| $3.367 | ▲+$0.121 |
← December 2025 · February 2026 → · all of 2026 · all Rocky Mountain history · monthly CSV
Download the underlying weekly EIA series or see the methodology and source cross-check.