(Zb 14 )
Station ROYAL OBSERVATORY, HONGKONG.
λ=7" 36" 41'86 E.
=22° 18′ 13′′-2 N. H== 109 feet.
Air Temperature.
Tension of Vapour.
Month.
Mean Pressure.
7a
Ip
1915.
Means of
Absolute.
Relative
Humidity.
བ
9P
Mean. †
Mean.
Min. Max.
Min.
Мах.
Mean.
D
Q
。
ם
▸
D
O
ins.
ins.
January,.
30.141
57.6
62.7
59.6
60.1
56.3
64.0
41.7
71,0 0.386
મકર
72
February,
.002
62.0
65.4
63.3
63.6
59-4
67.8
49.8
79,0
0.492
81
March,
.056
62.9
67.0
64.9
64.9
61.0 69.2
54.2
79.8
0.487
78
April,...
29.908
73.0 77.0
74.6
74-6
71.3
78.7
62.8 84.0
0.733 84
May,
.783
74.1
78.0
74.8
75.5
72.0 79.9 64.7
87.7
0.746
84
June,
.763
80.3
84.1
81.0
81.6
78.4 86.2
73.6 91.0
0.898
83
July,
.691
81.6
86.1
82.5 83.2
August,
.647 81.9
86.2
82.9 1. 83.5
September,.....
October,....
November,
December,
74.1
70.5
.807 78.8
83.6 80.0 80.9
.846 77.2 81.3 78.4 78.9 75.4
82.7
30.020 68.5
70.9 66.8 75.5
.079 59-9 66.8 63.0 63.4 58.6 67.9 49.5
79.3 88.1 74.8
79.7
88.5 74.2 93.1
76.9 85,4 67.6
93.4
0.921
81
0.943
82
90.0
0.796
75
62.6 87.8
0.754
75
57.6 86.1
0.548
70
80.1
0.372
62
Year,
29.895 71.5 76.0
73.0 73.4
69.6 77.8
41.7
93.4
0.673
77
ht 4 feet. hr
=
1 feet.
Cloud.
Bright Sunshine.
Rainfall.
Months
Meau.
Total.
Percent-
age of
possible.
Total.
Daily Max.
Weather.
No. of Days of
Wind.
No. of Days of
Rain.
Thunder-
storms.
* Gales..
N. N.E.
E.
3.E. 3. S.W. W. N.W.
2
2
%%
bours.
22
ins.
ins.
January,
February,
Murch,
April,
May,
June,
July,.
August,
September, October,.. November, December,
**OMONA
54
83
179.4
82.6 z6
53
mo
0.345
0.080
10 10
0.505
0.140
6
A
6
80
115.7 31
2.640 0.880
86
126.4 33
1.795
1.045
I 1
83
103.7 25
12.760
2.560
22
www.
1
2
*NN
21
14
2
2
3
21
I
I
2
:
I
:
N
16
2
79
175.9
++
11.960
3.115
19
2
7
5
10
8
66
219.3 53 25.410
4.125
18 10
...
7
69
205.3 52
10.520
3.010
17
7
•
6
52
234.2
64
5.715
2.880
10
3
5
2
18
NM N
2
8
9
5
3
13
5
1
1
67 187.3
52
11.710
4.890
10
1
7
++
24
72
154.4
47
1.890
0.750
13
39
214.5
0.775
0.600
ليا في
2
11
7
8
2
3
*
7
4
15
1
2
2
Year,.
69
1998.7 45
76,025
4.890 146
31
5
39
26 171
25
35 43
20
6
A The longitude of the station.
φ
ht=Height of the therms, above the ground.
(by Beckley nuemograph, factor 3).
The latitude of the station. H = Height above mean sea level. hr=Height of the rain-gauge above the ground.
Days of gales means days during some hour of which the wind velocity reached or exceeded 40 miles per hour In the Year 1915 there were no days of snow, hail, or calm, For further particulars see "Monthly Meteorological Bulletins for the year 1915".
↑ Mean of 24 hourly values.
The barometer readings are reduced to mean sea level and to constant gravity of latitude 45o.