American consumers saw no respite from inflation in August, as price increases persisted and gasoline costs continued to climb. The Bureau of Labor Statistics reported that consumer prices rose by 0.4 percent in August compared to the previous month, leaving the annual Consumer Price Index (CPI) inflation rate unchanged at 3.4 percent.

This latest inflation data, released just before the Federal Reserve's upcoming meeting, is widely expected to prompt an interest rate hike. "There’s little reason for the Fed to hold off on the hike next week - in fact, if it does, it may lose any credibility that new chair Kevin Warsh has been building since taking office," said Nic Puckrin, a markets expert and former Goldman Sachs analyst.

The figures come on the heels of a surge in crude oil prices, which surpassed $100 per barrel. This, coupled with a separate "hot" inflation report, had already led Wall Street traders to bet on a 70 percent chance of a Fed rate increase.

The ongoing conflict in the Middle East and rising energy prices have pushed consumer price gains back to levels not seen since the pandemic. The latest escalation in the conflict occurred after the data for the August report was collected, suggesting that inflationary pressures may continue into the September report.

According to AAA, the average price of gasoline stood at $4.07 in August. The intensification of the Iran conflict in recent weeks has further driven up gas prices to $4.30.