月份 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
平均 |
1956-2002 |
12.9 |
12.1 |
11.6 |
11.3 |
12.9 |
15.7 |
22.7 |
36.5 |
39.2 |
39.5 |
25.5 |
13.9 |
21.21 |
2003-2016 |
10.3 |
11.2 |
9.6 |
8.9 |
10.5 |
13.5 |
22.6 |
31.5 |
27.1 |
25.8 |
14.1 |
10.6 |
16.36 |