Illinois Diesel prices, liter

We show diesel price data for Illinois from 31-Mar-2025 to 07-Jul-2025. The average diesel price during that period is 0.91 per liter with a minimum of 0.87 on 02-Jun-2025 and a maximum of 0.97 on 23-Jun-2025. Our data are obtained from official government sources, regulatory agencies, petroleum companies, and major media sources. We update the series for Illinois every week.