American Trucking Associations’ advanced seasonally adjusted for-hire truck tonnage index decreased 2.1% in April, following a 4.4% drop during March. In April, the index equaled 134.8 (2000=100), down from 137.6 in March. The all-time high was 144 in February.

Compared with April 2015, the SA index was up 2%, which was down from March’s 2.2% year-over-year gain. Year-to-date, compared with the same period in 2015, tonnage was up 3.5% on February’s strength. Excluding February, the index was up just 1.8% over the same months in 2015.

The not seasonally adjusted index, which represents the change in tonnage actually hauled by the fleets before any seasonal adjustment, equaled 135.1 in April, which was 5% below the previous month (142.2).

“After having an abnormally large seasonally adjusted gain in February, tonnage fell in April, in addition to the large drop in March,” said Bob Costello, ATA chief economist. “However, while freight remained soft in April, based on other economic indicators, the outlook for tonnage is a little better than just a couple of months ago.

“With that said, there is still an inventory correction transpiring throughout the supply chain that will keep a lid on truck freight volumes in the near term. As a result, we are still likely to experience lackluster tonnage numbers in the next few months.”