APPENDIX 11 
METEOROLOGICAL REPORT 
BOTANIC GARDENS, SINGAPORE, 1964 
Reading daily at 9.30 a.m. local time at Botanic Gardens Office 
Altitude: 100 ft. a.s.l. 
1964 
Total Rainfall 
Highest 
fall in 
24 hrs. 
No. of 
days 
rainfall 
Mean 
Max. 
Temp. 
Highest 
Max. 
Temp. 
Mean 
Min. 
Temp. 
Lowest 
Min. 
Temp. 
Mean 
Dry Bulb 
Temp. 
Mean 
Wet Bulb 
Temp. 
Mean 
R.H. 
inches 
inches 
°F 
°F 
°F 
°F 
°F 
°F 
/o 
January 
February 
March 
April 
May 
June 
July 
August 
September 
October 
November 
December 
* 
9.81 (11.05) 
15.85 (7.37) 
9.58 (8.28) 
13.52 (8.11) 
7.62 (7.37) 
9.72 (6.72) 
9.75 (6.27) 
3.12 (6.94) 
7.14 (7.45) 
15.17 (7.96) 
8.53 (10.45) 
15.29 (10.07) 
1.94 
3.62 
3.50 
2.35 
1.32 
5.70 
1.70 
1.15 
1.46 
4.03 
1.61 
4.61 
16 
23 
19 
19 
16 
12 
22 
9 
14 
22 
14 
23 
87.1 
82.4 
88.6 
89.3 
90.0 
88.9 
87.2 
89.8 
88.7 
84.8 
88.0 
83.7 
91.0 
90.0 
92.0 
92.5 
94.5 
93.3 
91.5 
94.5 
93.0 
93.0 
92.5 
88.5 
74.1 
74.2 
74.8 
75.4 
76.8 
75.5 
74.5 
75.8 
75.4 
73.7 
74.1 
72.8 
71.5 
72.0 
73.0 
73.5 
74.5 
72.2 
69.5 
72.0 
73.5 
70.5 
71.5 
69.0 
80.1 
79.9 
80.8 
82.5 
82.4 
81.8 
79.7 
82.3 
81.1 
81.4 
81.5 
78.3 
76.9 
77.3 
77.1 
78.6 
79.2 
77.8 
76.9 
77.9 
77.5 
77.8 
77.1 
75.2 
86.2 
88.9 
84.4 
83.5 
87.3 
82.5 
88.3 
81.7 
84.9 
85.1 
83.1 
86.1 
Total 
125.10 (98.04) 
5.70 
209 
•• 
Mean 
j 
•• 
* A A, 
87.4 
(30.8°C) 
92.2 
(33.4°C) 
74.8 
(23.8°C) 
71.9 
(22.2°C) 
81.0 
(27.2°C) 
77.4 
(25.2 C) 
85.2 
* Mean rainfall for the period 1914-64, 51 years, 
