Washington Diesel prices, liter

We show diesel price data for Washington from 06-Apr-2026 to 13-Jul-2026. The average diesel price during that period is 1.45 per liter with a minimum of 1.39 on 06-Jul-2026 and a maximum of 1.50 on 18-May-2026. Our data are obtained from official government sources, regulatory agencies, petroleum companies, and major media sources. We update the series for Washington every week.