The consumer price index, excluding food and energy, climbed 0.3 per cent in August from a month earlier. On an annual basis, it advanced 2.4 per cent.

Analysts expect US core CPI to fall to 2.3%-2.4% year-over-year in August, down from July's 2.5%, ahead of the September FOMC meeting.

US core producer prices rose less than expected in August, complicating the Federal Reserve's rate decision ahead of the September 15-16 FOMC