The rainfall in 1180 was well below normal, and crop yields decreased significantly due to drought, and the entire western Japan including Kyoto was plagued by famine the following year.
前年の1180年が極端に降水量が少ない年であり、干魃により農産物の収穫量が激減、翌年には京都を含め西日本一帯が飢饉に陥った。