F 4
one hour, as recorded by the Beckley Anemograph, was 51 miles at 11 a.m. on July 24 as against 51 miles in 1920 and 108 for the past 38 years. The maximum squall velocity, as recorded by the Dines-Baxendell Anemograph, was at the rate of 69 m.p.h, at 5h. 53m. a.m. on September 3 as against 61 m.p.h. in 1920 and 105 m.p.h. for the past 12 years.
Rainfall at Four Stations.-In the following table the monthly rainfall for the year 1921 at the Observatory is compared with the fall at the Police Station, Taipo; the Botanical Gardens; and the Matilda Hospital, Mount Kellet :--
Months. Observatory Police Station (Taipo). (Kowloon). Botanical Gardens (Hongkong). Matilda Hospital (Hongkong). January, 0.195 inches. 0.19 inches. 0.28 inches. 0.18 inches. February, 1.040 1.48 1.20 0.80 March, 4.505 5.70 4.74 3.74 April, 3.20 2.70 3.01 2.95 May, 33.785 35.49 33.50 29.67 June, 14.740 20.32 16.59 19.83 July, 11.875 15.47 13.88 11.30 August, 15.445 15.27 15.95 12.95 September, 12.100 16.31 15.77 10.49 October, 0.395 0.80 0.15 0.24 November, 0.220 0.88 0.43 0.25 December, 0.220 0.02 0.33 0.32 Year.... 97.340 114.63 107.83 92.55Floods. The heaviest rainfall occurred at the Observatory as follows:----
Period. Amount. Duration. Greatest fall in 1 hour. Amount. Time. May... 4 to May 5 23 inches. 23 hours. May... 5 1.04 inches. 4 h. May... 9 to May 10 10 13 May... 10 6.10 17 h. May... 14 to May 18 46 74 May... 17 1.76 12 h. May... 22 to May 23 6 13 May... 23 1.56 6 h. May... 24 to May 28 4 74 May... 24 1.10 13 h. May... 31 to May 31 3.51 3 May... 31 3.25 16 h. June 20 9 10 June 20 2.23 21 h. July 2 to July 6 10 108 July... 2 6.09 18 h. Aug... 24 to Aug... 30 2 IS Aug... 26 1.32 14 h. Aug. 26 to Sept. 7 14 288 Aug... 30 1.08 16 h. 38 m. Ang... 30 69 108 Ang... 30 ... ...Typhoons. The tracks of 21 typhoons and 11 of the principal depressions which occurred in the Far East in 1921 are given in two plates in the Monthly Meteorological Bulletin for December 1921.