F 4
The wind velocity was slightly above normal in March and moderately below normal in January, July, September and October. The mean velocity for the year was 11.5 m.p.h. as against 11.7 m.p.h. in 1924 and 12.6 m.p.h. for the past 42 years. The maximum velocity for one hour, as recorded by the Beckley Anemograph, was 45 miles at 9 a.m. on June 26 as against 46 miles in 1924 and 108 miles for the past 42 years. The maximum squall velocity, as recorded by the Dines-Baxendell Anemograph, was at the rate of 65 m.p.h. at 7.7 p.m. on July 15 as against 130 m.p.h. for the past 16 years.
Rainfall at four Stations. In the following table the monthly rainfall for the year 1925 at the Observatory is compared with the fall at the Police Station, Tai Po; the Botanical Gardens; and the Matilda Hospital, Mount Kellet:-
Month Observatory Police Station (Kowloon) Botanical Gardens (Hongkong) Tai Po Matilda Hospital (Hongkong) January 4.335 inches 3.57 inches 4.90 inches 4.60 inches February 0.385 0.56 0.43 0.42 March 8.280 5.49 8.38 8.03 April 7.935 9.30 8.20 7.97 May 2.580 2.33 3.28 2.80 June 23.355 21.17 24.74 21.11 July 20.665 26.42 23.13 21.12 August 5.625 6.34 6.95 5.68 September 9.940 5.50 10.04 5.25 October 3.165 3.51 3.76 2.30 November 1.090 1.04 1.19 1.26 December 0.225 0.26 0.29 0.38 Year 87.580 85.49 95.29 82.92Floods.-The heaviest rainfall occurred at the Observatory as follows:-
Period Greatest fall in 1 hour Amount Time d. h. d. h. March 26 7 to Mar. 27 16 0.79 inches 29 hours April 1 1 to April 1 16 3.10 12 1.20 June 14 3 to June 17 17 14-53 41 3.16 July 15 to July 19 5 17.11 42 2.78 July 17 7 Sept. 18 5 to Sept. 19 4 5:12 3.12 Sept. 19 1Serious floods and landslides were caused by the heavy rains in March, June and July.
F 4
The wind velocity was slightly above normal in March and moderately below normal in January, July, September and October. The mean velocity for the year was 11.5 m.p.h. as against 11.7 m.p.h. in 1924 and 12.6 n.p.h. for the past 42 years. The maximum velocity for one hour, as recorded by the Beckley Anemograph, was 45 miles at 9 a.m. on June 26 as against 46 miles in 1924 and 108 miles for the past 42 years. The maximum squall velocity, as recorded by the Dines-Baxendell Anemograph, was at the rate of 65 m.p.h. at 7.7 p.m. on July 15 as against 130 m.p.h. for the past 16 years.
Rainfall at four Stations. In the following table the monthly rainfall for the year 1925 at the Observatory is compared with the fall at the Police Station, Tai Po; the Botanical Gardens ; and the Matilda Hospital, Mount Kellet :-
Month.
Observatory Police Station'
(Kowloon).
(Taipo).
Botanical Gardens (Hongkong).
Matilda
Hospital (Hongkong).
inches.
inches.
inches.
inches.
January,
4'335
3'57
4'90
4'60
February,
0*385
0'56
0'43
0'42
March,
8-280
5'49
8.38
8.03
April,
7'935
9:30
8.20
7'97
May,
2.58c
2°33
3:28
+80
June,
23.355
21'17
24.74
21'11
July,
20.665
26.42
23'13
21.12
August,
5.625
6.34
6.95
5.68
September,...
9'940
5:50
1004
5°25
October,
b.
3-165
3.51
3.76
230
November,
4
1'090
1'04
1'19
1'26
December, ...
0.225
0.26
0°29
0*38
Year....
87.580
85'49
95'29
$2.92
Floods.-The heaviest rainfall occurred at the Observatory
as follows:-
Period.
Greatest fall
in 1 hour.
Amount.
Time.
d. h.
d. b. inches. hours.
inches.
March 26 7 April... 1 1 to June...14 3 to July...14 15
15 to
to
Mar. 27 16 April 1 June 17 17 July 19 5
3:30
29
0.79
d. b.
March 26 22
21
3.10
12
1.20
April 1 16
14-53
41
3.16
June 15 23
17.11
42
2-$8
July 17 7
Sept....18 5 to Sept. 19 4
5:12
3.12
Sept. 19
19 1
Serious floods and landslides were caused by the heavy rains
in March, June and July.
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