Over the last five weeks, the national price has dropped 21.9 cents. The latest price is 49.7 cents higher than a year earlier.
Prices decreased in all regions, topped by 5.9 cents to $3.706 in the Midwest. The Rocky Mountain region dropped 5.2 cents to $3.861. With the recent price declines, only California at $4.039 remains above $4 a gallon.
The record diesel price was $4.764 in July 2008.
For diesel price information, click here.