Raw steel production in the Great Lakes region fell to 656,000 tons last week, a 1.05 percent decrease compared to 663,000 tons the week before.
It marked the second straight week of decline after a yearly high of 696,000 tons three weeks ago.
Nationally, steel output so far this year continues to trail the anemic 2015 pace by about 490,000 tons, a decline of 0.9 percent. In 2015, steel production in the United States declined by 10.5 percent from the year before, according to the World Steel Association.
Overall U.S. steel output fell by 1.29 percent last week, according to an American Iron and Steel Institute estimate. Total U.S. raw steel production last week was about 1.681 million tons, down from 1.703 million tons a week earlier.
Most of the raw steel production in the Great Lakes region takes place in the Chicago area, mainly in Lake and Porter counties.
Production in the Southern District, which spans mini-mills across the South, fell to 600,000 tons last week, down from 618,000 tons the previous week.
Year-to-date steel output in the United States has been 52.5 million net tons, at a capacity utilization rate of 72.5 percent, according to the American Iron and Steel Institute. It was 53 million tons at a capacity utilization of 72.3 percent at the same point in 2015.