Average Weekly Hours of Production Employees: Manufacturing in Montana was 37.40000 Hours per Week in January of 2021, according to the United States Federal Reserve. Historically, Average Weekly Hours of Production Employees: Manufacturing in Montana reached a record high of 40.20000 in January of 2005 and a record low of 35.30000 in January of 2020. Trading Economics provides the current actual value, an historical data chart and related indicators for Average Weekly Hours of Production Employees: Manufacturing in Montana - last updated from the United States Federal Reserve on April of 2024.