Average Weekly Hours of All Employees: Construction in Montana was 35.90000 Hours per Week in March of 2022, according to the United States Federal Reserve. Historically, Average Weekly Hours of All Employees: Construction in Montana reached a record high of 41.20000 in May of 2007 and a record low of 29.60000 in December 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.