It is pointed out that most correlations between the SO and the monthly or seasonal mean temperatures in China are positive in September,February and April and show persistently negative after September in current year. The maximum seasonal correlations occur in the autumn of the current year and in the spring of the next year. The annual mean tempearature in the next year in the lower Changjiang Reaches and Guangdong, Fujian and Shandong Provinces are in close negative relation with the SO.These relations can be used for temperature prediction.In addition,it is also found that early El Nino signals exist in the monthly or seasonal mean temperature records of April, May,September and October.