Sales at convenience stores in Japan dropped 0.7 percent in November from a year earlier on a same-store basis, marking a ninth straight monthly decline, the Japan Franchise Association said Monday.

This fall was smaller than the 1.6 percent drop recorded in October, reflecting favorable sales in products such as ice cream and soft drinks, amid higher-than-usual temperatures and humidity in the reporting month, the association said.

The industry group does not release the value of sales on a same-store basis.

The number of customers fell 0.1 percent on a same-store basis, marking a second straight monthly decline.

On an all-store basis, sales in November increased for the fourth consecutive month, hitting 572.64 billion yen, up 3.3 percent from a year earlier. The association compiled data from 13 member convenience store chains, including Seven-Eleven Japan Co., Lawson Inc. and FamilyMart Co.