Average Weekly Hours of All Employees: Construction in Illinois was 37.20000 Hours per Week in March of 2022, according to the United States Federal Reserve. Historically, Average Weekly Hours of All Employees: Construction in Illinois reached a record high of 39.80000 in August of 2011 and a record low of 34.00000 in February of 2007. Trading Economics provides the current actual value, an historical data chart and related indicators for Average Weekly Hours of All Employees: Construction in Illinois - last updated from the United States Federal Reserve on April of 2024.