214 SUPPLEMENT TO THE HONGKONG GOVT GAZETTE OF 22ND MAR., 1884.
GOVERNMENT NOTIFICATION.--No. 106.
The following report from the Government Astronomer, is published for general information. By Command,
Colonial Secretary's Office, Hongkong, 22nd March, 1884.
W. H. MARSH,
Colonial Secretary.
ON THE MEAN MONTHLY AND ANNUAL RAINFALL AT HONGKONG.
The amount of Rain fallen during the previous twenty-four hours has been for sev eral years collected and measured at Stone Cutters' Island at Noon every day. This island is situated in a sheltered position,-very favourable for the collection of Rain. The rim of the gauge is circular, 8 inches in diameter and is placed 2 feet 4 inches above the Ground, and about 15 feet above Sea Level. The amount of Precipitation has been measured in hundredths of an inch, the thousandths being neglected, so that the registered amount though fairly accurate, is likely to be a little too small.
The Monthly and Annual Rainfall during the years 1878-1883 inclusive is exhibited in Table I. The Mean Annual Rainfall is 90 inches. The Rainy Season sets in, in May or at the end of April and ends in September or in October, but occasionally very little Rain falls in September. The Mean Semi-Annual Rainfall from May to October inclusive is 76.98 inches, and from November to April. it is 13.90 inches.
By comparison with the Table of Cloudiness published in a previous Report, it appears, that this is greater during the Dry than during the Rainy Season.
MONTH.
TABLE I.
MONTHLY AND YEARLY RAINFALL AT HONGKONG.
1878.
1879.
1880.
1881.
1882.
1883.
MEAN.
January,
1.50
0.63
2.14
0.00
0.11
0.06
0.74
February,.
2.99
1.56
2.56
0.09
0.61
0.12
1.32
March,
5.96
5.26
0.25
1.89
0.66
9.88
3.98
April,
4.53
5.03
2.60
14.14
411
6.37
6.13
May,.
22.34
8.48
13.17
3.65
14.20
17.50
13.22
June,
11.74
8.30
28.48
4.52
7.86
12.57
12.25
July,...
4.68
15.74
15.10
24.55
13.00
19.90
15.50
August,
14.75
12.83
12.83
26.78
13.76
24.45
17.57
September,
1.52
17.47
15.12
4.71
4.46
22.76
11.01
October,
12.25
2.99
13.74
8.50
1.29
0.40
6.53
November,
0.00
1.39
0.00
2.28
3.16 -
1.78
1.44
December,
0.03
0.09
1.00
0.36
0.00
0.25
0.29
Total,........
82.29
79 77
106.99
91.47
63.22
116.04
89.98
Hongkong Observatory, March 19th, 1884
W. DOBERCK, Government Astronomer.