Average Weekly Hours of All Employees: Information in Illinois was 36.70000 Hours per Week in March of 2022, according to the United States Federal Reserve. Historically, Average Weekly Hours of All Employees: Information in Illinois reached a record high of 39.60000 in March of 2009 and a record low of 34.50000 in February of 2017. Trading Economics provides the current actual value, an historical data chart and related indicators for Average Weekly Hours of All Employees: Information in Illinois - last updated from the United States Federal Reserve on March of 2024.