WASHINGTON, D.C. --- The U.S. average diesel price dropped 8.4 cents to $3.875 per gallon, the Energy Information Administration (EIA) reported Wednesday, Oct. 8.

Diesel prices settled below the $4 mark in all major regions of the country for the first time since March 10, the EIA said. The price on the East Coast fell 9.2 cents to $3.928 per gallon, although it was still 89.7 cents higher than last year.

Dropping 7.8 cents, the diesel price in the Midwest fell to $3.858 per gallon. The average price in the Gulf Coast dipped 8.6 cents to $3.843 per gallon, remaining the lowest of any region. The price in the Rocky Mountains decreased 5.8 cents to $3.886 per gallon.

The average diesel price on the West Coast declined 9.4 cents to $3.847 per gallon. In California, the average also moved down by 9.4 cents to $3.869 cents per gallon.