The rest of that same page you quoted from mentions we actually had _deflation_ in December (-0.1% CPI-U), because energy costs fell so much, specifically gas.
"Last month, inflation was 6.5%" is not correct by any reading of this data! Your link makes it clear that was inflation over the course of 2022, as I said in clunkier language. The graph on that same first page shows most of that inflation happened in the first 6 months of 2022.
The average of the last 6 months in that graph is 0.15, or ~1.8% annualized. That's an arbitrary cutoff (including July's 1.3 shoots up to 3.9% annualized!), but it seems clear we're on the right track. If the next 6 months look similar to the last 6, we will look back and say inflation was already under control before 2022 ended.
