APPENDICES
APPENDIX 53
(Chapter 23: The Environment) Climatological Summary, 1997
ļ
Mean
pressure
Maxi-
mum
at mean air temp-
Mean
Mini-
mum
Mean
Mean
Mean
Total
Prevailing
Mean
air temp-
air temp-
dew relative
amount
bright
Total
wind
wind
sea level
erature
erature
erature
point
humidity
of cloud
sunshine
rainfall
direction
speed
Month
(hectopascals)
('C)
(°C)
(°C)
(°C)
(%)
(%)
(hours)
(mm)
(degrees)
(km/h)
January
1 019.3
23.9
16.7
10.2
11.1
71
47
173.6
44.6
060
27.3
February
1 018.3
24.6
16.1
10.9
12.3
79
76
85.5
111.7
060
30.7
March
1 016.9
27.1
20.1
14.2
16.7
82
68
129.3
34.8
060
23.1
April
1 014.1
29.7
22.8
18.8
19.5
83
84
73.6
133.2
070
21.3
May
1 008.6
31.8
26.1
21.3
22.6
82
75
136.7
300.8
080
20.1
June
1 006.2
32.1
27.3
22.3
24.6
85
84
99.7
783.6
220
20.2
July
1 006.6
33.2
28.1
22.6
25.0
84
78
125.1
746.0
190
21.0
August
1 003.4
33.2
28.4
23.8
25.1
83
77
141.3
829.0
240
27.1
September
1 012.1
31.5
26.4
19.3
22.4
79
74
117.1
232.9
010
23.1
October
1 016.0
30.4
25.9
19.5
21.7
November
1 017.9
28.6
23.1
15.8
17.2
December
1 020.3
25.2
18.9
12.4
14.3
Year
1 013.3
33.2
23.4
10.2
19.4
2 = 2 2
78
58
173.3
112.8
090
20.1
71
53
202.6
7.1
090
23.5
75
64
100.4
6.5
050
26.6
70
1 558.2
3 343.0
070
23.6
Climatological Normals (1961-1990)
Mean
pressure
at mean
sea level
Maxi-
mum
air temp- erature
Mini-
Mean
mum
Mean
air temp-
air temp-
dew
Mean relative
erature
erature
point
humidity
Mean
amount of cloud
Total bright sunshine
Total rainfall
Prevailing wind direction
Mean
wind
speed
Month (hectopascals)
(*C)*
(°C)
(°C)*
(°C)
(%)
(%)
(hours)
(mm)
(degrees)
(km/h)
January
1 020.2
26.9
15.8
0.0
10.2
71
58
152.4
23.4
070
24.0
February
1 018.7
27.8
15.9
2.4
11.8
78
73
97.7
48.0
070
23.8
March
1 016.2
30.1
18.5
4.8
15.0
81
76
96.4
66.9
070
22.1
April
1 013.1
33.4
22.2
9.9
19.0
83
78
108.9
161.5
080
19.7
May
1 009.1
35.5
25.9
15.4
22.6
83
74
153.8
316.7
090
19.2
June
1 006.0
35.6
27.8
19.2
24.4
82
75
161.1
376.0
090
21.6
July
1 005.3
35.7
28.8
21.7
24.9
80
65
231.1
323.5
230
20.0
August
1 005.1
36.1
28.4
21.6
24.8
81
66
207.0
391.4
090
18.5
September
1 008.8
35.2
27.6
18.4
23.3
October
1 014.0
34.3
25.2
13.5
19.8
November
1 017.9
31.8
21.4
6.5
15.2
December
1 020.2
28.7
17.6
4.3
11.2
Year
1 012.9
36.1
23.0
0.0
18.6
2 2 8 8 F
78
63
181.7
299.7
090
21.9
73
56
195.0
144.8
090
27.6
69
53
181.5
35.1
080
27.2
68
49
181.5
27.3
080
25.5
77
65
1 948.1
2 214.3
080
22.6
Note: * These extreme values are for the period 1884-1939; 1947-1997.
Source: Hong Kong Observatory.
(Enquiry Telephone No.: 2926 8444)
471
No comments yet.
Private notes are available after approval.