ENG-2006 — Page 570

486 | Appendices

Table 35

(Chapter 14: The Environment)

Meteorological Observations

Normals (1961-1990)(1)

Whole

January

July

Year

2006

Air temperature (°C)

Mean maximum

18.6

31.5

25.7

25.8

Mean

15.8

28.8

23.0

23.5

Mean minimum

13.6

26.6

20.9

21.7

Mean relative humidity (%)

71

80

77

80

Total rainfall (mm)

23.4

323.5

2 214.3

2 627.8

Total bright sunshine (hours)

152.4

Mean wind speed (km/h)

24.0

231.1

20.0

1 948.1

1 773.5

22.6

22.6

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)

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