Lower sales were recorded in five of seven subsectors, led by the machinery, equipment and supplies and the personal and household goods subsectors.
In volume terms, wholesale sales declined 0.7%.
In the third quarter, wholesale sales increased 0.6% in current dollars, while constant dollar sales were unchanged. This was the 10th consecutive quarterly increase in current dollars.
In September, lower sales were recorded in five of seven subsectors, which together accounted for 68% of total wholesale sales.
Following two consecutive monthly gains, sales in the machinery, equipment and supplies subsector declined for the second time in 2018, down 2.0% to $13.0 billion in September. Sales declined in three of the four industries, led by the computer and communication equipment and supplies (-3.3%) and the farm, lawn and garden machinery and equipment (-6.4%) industries.