APPENDIX 111 
METEOROLOGICAL REPORT 
botanic GARDENS, SINGAPORE, 1964 
Reading daily at 8.00 a.m. local time at “ Orchid Enclosure" from 1-164 to 3112 -64 
Altitude: 100 ft. a.s.l. 
1964 
Total Rainfall 
Highest fall in 
24 hours 
No. of days 
Rainfall 
Mean Maximum 
Temperature 
Highest Maxi- 
mum Tempe- 
rature 
Mean Minimum 
Temperautre 
Lowest Mini- 
mum Tempe- 
| rature | 
Mean Tempe- 
rature Dry 
Bulb 
Mean Tempe- 
rature Wet 
Bulb 
Mean R.H. 
Mean Minimum 
Grass Tempe- 
rature 
Mean Eartn 
Temperature 
4 " 
Mean Earth 
Temperature 
1' 
Mean Earth | 
Temperature 
4 ' 
1 Mean Solar Ra- 
1 diation Ther- 
1 mometer 
Mean Daily ! 
Hours of Sun 
shine 
January 
February 
March 
April 
May 
June 
July 
August .... 
September . . 
October 
November . . 
December . . 
ins. 
8.98 
15.77 
9.45 
13.32 
7.15 
9.48 
9.98 
2.94 
7.44 
14.31 
8.00 
15.41 
ins. 
1.90 
4.20 
3.90 
3.30 
1.25 
5.20 
1.52 
1.14 
1.54 
4.18 
1.51 
4.63 
15 
23 
19 
20 
16 
13 
20 
10 
14 
21 
16 
22 
°F 
87.0 
85.9 
87.7 
88.1 
88.2 
86.9 
85.0 
87.4 
87.7 
85.7 
86.6 
83.6 
°F 
90.5 
90.5 
91.5 
91.0 
92.5 
91.8 
89.5 
90.5 
91.0 
89.0 
90.0 
88.5 
°F 
76.5 
73.6 
74.0 
74.5 
76.1 
74.7 
73.1 
74.1 
74.1 
72.8 
72.3 
71.1 
°F 
71.0 
71.5 
72.0 
69.0 
73.5 
72.0 
69.0 
72.0 
72.0 
70.0 
69.0 
68.0 
°F 
75.6 
75.3 
75.8 
77.2 
78.3 
77.0 
76.2 
77.3 
77.0 
76.8 
76.5 
74.2 
°F 
75.0 
74.7 
75.3 
76.6 
77.5 
76.8 
75.5 
76.1 
75.9 
75.6 
75.4 
73.3 
% 
97.3 
97.4 
97.2 
97.3 
96.4 
96.2 
96.2 
94.7 
92.1 
94.5 
95.0 
95.8 
°F 
70.5 
71.4 
72.3 
74.2 
75.2 
74.2 
72.8 
73,1 
72.7 
71.8 
71.9 
69.6 
°F 
78.3 
79.4 
80.5 
81.1 
82.3 
80.8 
79.8 
81.0 
80.6 
79.4 
79.0 
77.7 
°F 
80.9 
81.3 
81.7 
82.9 
83.9 
83.9 
82.2 
83.4 
83.1 
82.2 
81.0 
79.7 
°F 
82.2 
82.6 
82.2 
83.4 
83.4 
83.4 
83.0 
83.1 
83.6 
83.1 
82.7 
86.0 
°F 
124.1 
124.4 
129.7 
131.4 
135.4 
127.0 
119.0 
132.2 
122.0 
123.0 
5.33 
4.90 
5.60 
5.24 
5.80 
5.57 
5.47 
6.94 
4.61 
4.74 
4.67 
3.40 
Total . . 
122.33 
•• 
209 
.. 
•• 
■■ 
•• 
■■ 
Mean . . 
86 6 
90.5 
73.9 
70.7 
76.4 
75.6 
94.8 
72.5 
80.0 
82.2 
83.2 
126.8* 
5.19 
(30.3°C) 
(31.4°C) 
(23.3°C) 
(21.5°C) 
(24.7°C) 
(24.2°C) 
(22.5°C) 
(26.7°C) 
(27.9°C) 
(28.4°C) 
(52.7°C) 
* 10 month average. 
