Was October 25, 2026 the most expensive October ever in United States?
NO
No — October's price data doesn't exist yet, and even September's CPI won't be beaten by this month.
Why
- September 2026 CPI: 336.9, +3.6% year over year
- October 2026 CPI not due until Nov. 10, 2026
- Prices peak every month; October is merely the latest, not a record