Table 34

(Chapter 14: The Environment)
Meteorological Observations
  Normals (1961 – 1990)(1)    
January   July   Whole
Year		   2002  
                 
Air temperature (°C)                
  Mean maximum 18.6   31.5   25.7   26.0  
  Mean 15.8   28.8   23.0   23.9  
  Mean minimum 13.6   26.6   20.9   22.1  
Mean relative humidity (%) 71   80   77   79  
Total rainfall (mm) 23.4   323.5   2 214.3   2 490.0  
Total bright sunshine (hours) 152.4   231.1   1 948.1   1 869.8
Mean wind speed (km/h) 24.0   20.0   22.6   21.3  
Note: (1) The World Meteorological Organization (WMO) defines climatological standard normals as averages of climatological data computed for the following consecutive periods of 30 years: 1 January 1901 to 31 December 1930, 1 January 1931 to 31 December 1960, 1 January 1961 to 31 December 1990, 1 January 1991 to 31 December 2020 etc.
Source: Hong Kong Observatory.
(Enquiry Telephone No.: 2926 8444)