Abstract
By use of old documents and recent meteorological records, the frequencies of typhoon that attacked Central Japan were accounted from the 11th to the 20th centuries. During the warm periods, typhoons attack mainly from the third decade of August to the third decade of September. But, during the cool periods, the peak of typhoon’s attack appears on the third decade of September. And number of attacks decrease gradually before and after the period. The causes of the difference of the peak of typhoon’s attack seasons between the warm period and the cool period may be related to the patterns of general circulation.
