Average Weekly Hours of Production Employees: Manufacturing in Illinois was 42.40000 Hours per Week in January of 2021, according to the United States Federal Reserve. Historically, Average Weekly Hours of Production Employees: Manufacturing in Illinois reached a record high of 43.00000 in January of 2018 and a record low of 39.70000 in January of 2010. Trading Economics provides the current actual value, an historical data chart and related indicators for Average Weekly Hours of Production Employees: Manufacturing in Illinois - last updated from the United States Federal Reserve on March of 2024.