On a seasonally adjusted basis the August CPI-U for all items increased 0.1 percent over the month. The index increased 1.5 percent from August 2012, not seasonally adjusted. The index for Food increased 0.1 percent over the month; the index for Energy fell 0.3 percent. All Items less Food and Energy increased 0.1 percent over the month as well, with subcategories mostly similarly stable. Medical care commodities (up 0.4 percent), Transportation services (down 0.5 percent), and Medical care services (up 0.7 percent) were exceptions.
The official BLS news release is available here: www.bls.gov/news.release/pdf/cpi.pdf