Washington Diesel prices, liter

We show diesel price data for Washington from 06-Oct-2025 to 12-Jan-2026. The average diesel price during that period is 0.97 per liter with a minimum of 0.96 on 29-Dec-2025 and a maximum of 0.99 on 15-Dec-2025. Our data are obtained from official government sources, regulatory agencies, petroleum companies, and major media sources. We update the series for Washington every week.