ENG-1979 — Page 355

Hong Kong Year Books 香港年報 All

Appendix 39

(Chapter 19: The Environment)

Climatological Summary, 1979

Mean Maxi-

Mini-

273

pressure

mum

Mean

mum

Mean

at mean air tem-

air tem-

air tem-

dew

Mean relative

Mean

Total

Prevailing

Mean

amount

bright

Total

wind

wind

Month

sea level perature perature

perature

point humidity of cloud

sunshine

rainfall direction

speed

kilopascals

°C

°C

°C

°C per cent

per cent

hours

mm

points

m/s

January

101.94

23.7

17.6

6.8

14.0

80

70

122,5

45.1

ENE

5.8

February

101.63

26.5

18.9

6.1

14.8

78

72

93.9

9.4

E

6.1

March

101.40

27.8

19.3

12.6

17.2

88

90

38.0

71.9

ENE

7.5

April

101.29

32.4

21.7

14.1

18.9

85

83

86.0

234,5

ENE

6.0

May

100.91

31.2

24.4

19.4

21.9

86

84

94.3

311.6

E

5.9

June

100.82

32.3

26.9

22.1

24.2

86

78

142,1

378.2

E

5.3

July

100.60

33.8

29.2

24.4

25.1

79

63

273.7

339.4

SW

5.0

August

100.41

33.5

27,9

23,5

25.1

85

76

138.2

706.9

WSW

5,2

September

101.05

32.9

27.1

22.5

23.4

81

65

164.3

506.3

E

6.0

October

101.53

30.6

24.7

20.3

16.2

61

20

297.4

0.0

E

5.7

November

101.92

28.9

20.4

10.5

11.8

60

57

150.7

11.2-

N

8.2

December

102.09

25.3

18.6

11.4

13,3

73

30

230.4

0.2

ENE

6.4

Mean

101,30

23.1

18.8

79

66

E

6.1

Total

1

|

1,831,5

2,614.7

Climatological Normals

(1947-1976)

ار

Month kilopascals

°C*

°C

°C*

°C per cent

per cent

hours

mm

points†

m/s†

January

102.01

26.9

15.6

0.0

9.9

72

58

157.2

28.5

ENE

6.5

February

101,83

27.8

15.9

2.4

11.8

79

71

109.0

44.9

ENE

6.4

March

101.63

30.1

18.4

6.2

14.9

82

76

106.3

49.3

ENE

6.0

April

101.31

33.4

21.9

9.9

18.8

84

76

119.3

135.3

E

5.3

May

100.92

35.5

25.9

15.4

22.7

84

73

164.2

289.3

E

5.3

June

100.59

35.6

27.6

19.2

24.4

84

77

149.4

457.5

SW

5.7

July

100.55

35.7

28.5

22.2

24.9

82

66

226.0

319.3

SW

5,2

August

100.53

36.1

28.1

21.6

24.8

83

66

206.1

420.2

E

5.1

September

100.84

35.2

27.5

18.4

23.3

80

62

191.2

330.8

October

101.39

34.3

24.9

13.5

19.4

73

54

209.0

107.2

魚店

E

5.9

E

7.2

November

101.75

31.8

21.3

6.5

15.1

70

December

101.96

28.7

17.5

4.3

11.4

70

22

53

189.4

38.2

54

171.9

25.9

房屋

E

7.4

E

6.9

Mean

101.28

22.8

18.5

78

65

E

6.1

Total

1

1,998.8 2,246.4

!

1

Note: 1 kilopascal=10 millibars

1 m/s 1.94 knots

* 1884-1939; 1947–1979.

† 1953-1979 as record commenced in 1953 at Waglan Island.

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