Average Weekly Hours of All Employees: Construction in Montana was 36.90000 Hours per Week in January of 2021, according to the United States Federal Reserve. Historically, Average Weekly Hours of All Employees: Construction in Montana reached a record high of 38.60000 in January of 2019 and a record low of 34.00000 in January of 2009. Trading Economics provides the current actual value, an historical data chart and related indicators for Average Weekly Hours of All Employees: Construction in Montana - last updated from the United States Federal Reserve on March of 2024.