少雨期 meaning in English

brief rain period
infrequent rain period

The late 1940s - early 1960s and early 1970s to middle 1980s is wet period . the early 1960s to early 1970s is dry period . the significant decrease of rainfall began in the 1990s
40年代末至60年代初期及70年代初期至80年代中期为多雨期， 60年代初期到70年代初期为少雨期， 90年代初期以后又有明显的下降。
Result shows that summer precipitation in north china has gone through four major dry - damp phases , richer periods from 1900 to 1915 and from 1946 to 1978 , less periods from 1916 to 1945 and from 1979 to 2001 , and has obvious inter - decadal variations , and has about 60a , 20 - 30a , 10a major periods and has twice abrupt changes in 1953 and 1979
结果表明：华北夏季降水经历了四个主要干湿阶段，即1900 1915年和1946 1978年为多雨期， 1916 1945年和1979 2001年为少雨期，具有明显的年代际变化，主要有约60年、 20 30年和10年左右的周期，并在1953年和1979年发生了两次气候突变。