Abstract:The wind speed changes in Qingdao are analyzed on the basis of annual average wind speed data from Qingdao Station from 1899 to 2015 and daily wind speed data from 88 automatic stations in Qingdao from 1961 to 2015 together with NCEP/NCAR re-analyses. The results show that in the context of global climate change, the wind speed changes at Qingdao Station were reinforced from 1899 to 1938, sustained with fluctuations from 1939 to 1991, and diminished from 1992 to 2015. The wind speed changes since 1990s did significant contribution to the wind speed downtrend at Qingdao Station from 1961 to 2015, approximately by 0.41 m·s-1 per decade. Moreover, the northerly wind decreased approximately by 0.33 m·s-1 per decade from 1961 to 2015. The wind speed downtrend in the southeastern coastal areas of Qingdao is greater than that in the northern inland areas, which responds to the regional difference of urbanization in Qingdao. The urbanization contributes to the weakened surface annual average wind speed at -17.3%.