The Chicago Business Barometer, also known as the Chicago PMI, jumped to 55.8 in November from 44 in the prior month.
Economists polled by the Wall Street Journal had forecast a 46 reading.
This is the first reading above the 50 threshold for growth since August 2022.
The index is produced by the ISM-Chicago with MNI.
It is the last of the regional manufacturing indices before the national ISM data for November is released on Friday .
