>5 
19,2 Lee: Citrus-canker Control 131 
early part of May. Table 1, compiled from the reports of the 
Philippine Weather Bureau, shows the monthly rainfall in detail 
during 1914, 1915, and 1916 at Manila. The rainfall at Lamao 
is, sometimes at least, slightly less than that at Manila, while 
that at Los Banos may be said to be usually slightly greater. 
Table 1. — Rainfall recorded by the Central Observatory at Manila of the 
Philippine Weather Bureau. 
Month. 
1914 
1915 
1916 
Total. 
Daily 
maxi- 
mum. 
Rainy 
days. 
Total. 
Daily 
maxi- 
mum. 
Rainy 
days. 
Total. 
Daily 
maxi- 
mum. 
Rainy 
days. 
mm. 
mm. 
mm. 
mm. 
mm. 
mm. 
January-- 
3.5 
1.7 
3 
5.6 
3.5 
5 
' 38.2 
20.8 
7 
February 
7.3 
3.3 
4 
3.8 
3.8 
1 
23.6 
20.7 
4 
March . _ __ 
6.1 
5.1 
2 
3.3 
2.4 
4 
29.1 
16.8 
5 
April. .. 
53.4 
26.2 
8 
0.5 
0.5 
1 
46.2 
33.8 
5 
May 
84.0 
43.8 
11 
50.4 
13.5 
9 
39.8 
9.3 
15 
June 
367.9 
109.7 
13 
126.7 
53.6 
10 
224.6 
72.9 
17 
July. 
399.3 
71.2 
23 
276.3 
80.0 
20 
179.9 
46.0 
25 
August 
492.3 
96.6 
25 
413.8 
63.2 
23 
282.3 
43.7 
24 
September 
887.7 
234.7 
21 
478.7 
103.3 
21 
372.6 
74.2 
25 
October 
40.2 
18.0 
12 
165.4 
27.5 
19 
223.6 
43.0 
25 
November. 
41.0 
29.8 
7 
208.1 
105.4 
15 
106.5 
21.6 
15 
December 
52.4 
15.0 
14 
182.3 
68.7 
13 
76.0 
16.2 
13 
A study of this table will give an idea of the time and amount 
of rainfall throughout a normal year. 
Table 2. — Temperatures recorded by the Central Observatory at Manila 
of the Philippine Weather Bureau. 
Month. 
1914 
1915 
1916 
Mean. 
Maxi- 
mum. 
Mini- 
mum. 
Mean. 
Maxi- 
mum. 
Mini- 
mum. 
Mean. 
Maxi- 
mum. 
Mini- 
mum. 
°C. 
°G. 
°c. 
°c. 
°c. 
°c. 
°C. 
°c. 
°c. 
J anuary 
23.7 
32.7 
14.5 
24.8 
32.6 
17.5 
24.8 
32.8 
17.4 
February _ 
24.2 
33.1 
16.3 
25.7 
34.2 
17.3 
25.3 
33.2 
16.9 
March 
26.5 
35.7 
17.6 
26.8 
36.4 
18.9 
26.4 
34.9 
20.0 
April- 
28.0 
36.9 
19.2 
28.7 
38.0 
20. 6 
27.3 
35.0 
20.4 
May 
28.5 
37.7 
21.4 
29.2 
38.6 
22.6 
27.4 
35.5 
22.0 
June 
27.4 
35.5 
22.7 
28.8 
36.9 
23.3 
27.1 
35.1 
22.3 
J uly _ 
27.0 
33.5 
22.7 
27.6 
36.3 
22.1 
26.9 
34.1 
22.4 
August .. - 
27.0 
34.1 
22.1 
26.9 
32.9 
22.5 
27.2 
33.5 
22.0 
September 
26.2 
34.1 
22.2 
26.8 
33.4 
22.4 
26.0 
33.3 
22.3 
October 
25.9 
33.4 
20.0 
26.6 
33.9 
22.4 
25.9 
33.8 
21.6 
November..- . __ 
26.0 
33.7 
19.7 
26.0 
33.6 
21.4 
25.7 
32.0 
19.5 
December __ 
25.3 
33.4 
18.4 
25.4 
32.2 
19.8 
34.9 
32.2 
17.4 
The temperatures at either Lamao or Los Banos are fairly 
high, with comparatively slight seasonal variations. The table 
