BEIJING – China's consumer price index (CPI), a main gauge of inflation, rose 0.5 percent year-on-year in July, official data showed Sunday.

The core CPI, which excludes food and energy prices, increased 0.9 percent year-on-year, according to the National Bureau of Statistics (NBS).

Influenced by international imported factors, CPI in July edged down 0.1 percent on a month-on-month basis, the NBS data revealed.

Sunday's data also showed that China's producer price index, which measures costs for goods at the factory gate, went up 3.5 percent year- on-year in July.

ALSO READ: China's growth outlook upbeat due to resilience

On a month-on-month basis, PPI dipped 0.7 percent last month, the NBS data showed.

Analyzing the monthly changes, NBS statistician Dong Lijuan said imported factors weighed on prices in some industries, seasonal factors including high temperatures, heavy rainfall, and typhoons slowed construction activity and pulled down prices in certain sectors, while industrial transformation and consumption upgrading boosted demand and drove up prices in others.