The above FRED chart shows that industrial production grew throughout the year. We see production increase in the first quarter, sow its rise in the second and third, and then continue to rise in the fourth.
The above chart from the ERP shows that both durable, minerals and non-durable manufacturing contributed to the rise.
Steel production rose for most of the year, while auto production saw a mid-year dip and a tailing off at year end.
The annual report of the Federal Reserve explains the industrial production situation like this:
Essentially, industrial production was the beneficiary of consumer demand. As the US consumer wanted more and more "stuff" the industrial sector obliged with products.