ENG-2007 — Page 561

Table 36

(Chapter 14: The Environment)

Meteorological Observations

Appendices | 485

Normals (1961-1990)(1)

Whole

January

July

year

2007

Air temperature (°C)

Mean maximum

18.6

31.5

25.7

26.4

Mean

15.8

28.8

23.0

23.7

Mean minimum

13.6

26.6

20.9

21.7

Mean relative humidity (%)

71

80

77

77

Total rainfall (mm)

23.4

323.5

2 214.3

1 706.9

Total bright sunshine (hours)

152.4

Mean wind speed (km/h)

24.0

231.1

20.0

1 948.1

1978.7

22.6

22.1

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 8449)