Table V.
Five-yearly Means of Total Hourly Duration of Sunshine for each Month in the year and Mean Monthly Duration of Sunshine.
''!
6 a.
7 a.
8 a.
9 a.
10 a.
11 ab.
Noon.
1 p.
2 p.
3 p.
4 p.
5 p.
6 p.
Mean
Record.
Total
Percentage
Possible. of Possible.
Month.
January,
2.1
9.9
12.7
13.7
13.6
14.4
15.7.
15.3
15.3
14.1
4.4
131.2
311
42.2
:
February,
1.7
5.4
6.1
6.7
7.3
7.2
6.9
7.3
6.5
5.4
2.7
:
63.2
297
21.3
March,
1.5
5.1
6.2
7.6
9.4
9.5
10.0
10.5
10.1
8,9
3,6
82.4
344
24.0
April,
0.1
4.2
7.5
9.9
11.8
12.1
12.8
13.2
13.2
12.8
10.9
6.3
0.6
115.3
353
32.7
G
May,
1.1
6.8
9.6
10.9
12.9
13.9
14.5
14.8
14.4
13.8
12.2
10.2
2.9
138.1
380
36.3
June,
2.1
9.3
12.1
14.4
14.1
14.9
14.1
15.1
16,0
15.0
13.0
11.4
3.6
155.1
376
41.3
July,
3.7
14.1
16.6
17.2
18.9
19.8
17.7
17.7
18.2
17.8
15.4
13.0
4.1
194.2
384
50.6
August,
2.3
14.3
17.6
19.3
18.9
18.6
17.7
18.8
19.6
17.8
17.5
13.9
3.7
200.0
370
54.L
Soptember,
0.3
13.0
17.9
21.4
22.7
22.1
21.4
21.2
20.0
19.6
18.4
13.7
0.5
212.2
340
62.4
October,
:
11.8
20.8
22.7 24.2
24.1
28.3
23.7
23.4
22.6
20.7
14.1
231.3
331
69.9
November,
December,
8.2
19.0
21.8
23.1
28.7
28.4
23.3
22.5
21.1
20.2
8.7
214.9
306
70.2
5.1
19.6
20.9
22.4
22.6
23.1
23.6
23.0
21.7
20.4
6.2
208.7
307
68.0
Sums,
9.6
92.1
161.1 183.5. 197.0
202.1
199.1
204.0
203.4 194.1
177.1
108.2
15.3
1946.6
4099
47.5
339