Sunspots and Earth Temperatures. 59 
Table III. — Five-foot Earth Temperatures at Adelaide and corresponding 
Sun spot Numbers. 
Sun spot 
month. 
Earth 
temperature 
month. 
Sun spot numbers below 30. 
Sunspot numbers above 30. 
Mean of 
numbers. 
Times. 
Earth tem- 
peratures. 
Mean of 
numbers. 
Times. 
Earth tem- 
peratures. 
December . 
January . 
93 
15 
66-9°F. 
559 
15 
66-3°F. 
January . 
February . 
11 5 
15 
68-2 
564 
15 
67-6 
February . 
March 
130 
16 
67*8 
677 
14 
67-8 
March 
April 
10-6 
14 
664 
55-9 
16 
663 
April . 
May . 
9-0 
14 
63-9 
61 6 
16 
63-9 
May . 
June . 
127 
15 
61-3 
58-1 
15 
613 
June . 
July . . 
11-3 
14 
59 1 
611 
16 
591 
J uly . 
August 
130 
15 
57-9 
68-2 
15 
58-0 
August 
September 
121 
14 
58-2 
59-5 
16 
58-1 
September 
October . 
10 7 
13 
594 
58-2 
17 
59-3 
October . 
November 
107 
14 
61-8 
59-6 
16 
615 
November 
December 
6-6 
12 
642 
53-9 
18 
641 
Summer half . 
103 
85 
647 
58-6 
95 
644 
Winter half . 
11-4 
86 
61 1 
607 
94 
611 
Year . 
125 
63-0 
57-8 
627 
