Industrial production rose 0.6% in September after a 0.4% gain the previous month, the Federal Reserve reported Monday.
Capacity utilization edged up to 78.3% from a revised 77.9% in August, first reported as 77.8%.
Economists polled by Thomson Reuters expected a 0.4% increase in production and 78.0% capacity utilization.
Manufacturing output was up 0.1% in September following a 0.5% increase the previous month, which was originally reported as a 0.7% jump.
Utilities rose 4.4% in September after sliding a revised 0.9% in August, originally reported as a 1.5% decrease.