year　1999	
	
week	temperature(℃)
	
1	
2	22.8 
3	22.7 
4	22.1 
5	22.2 
6	21.8 
7	21.8 
8	21.8 
9	21.7 
10	22.0 
11	22.0 
12	22.0 
13	22.0 
14	21.9 
15	21.7 
16	22.9 
17	23.9 
18	22.6 
19	23.5 
20	23.5 
21	24.1 
22	24.5 
23	24.9 
24	25.7 
25	26.0 
26	26.8 
27	27.4 
28	26.6 
29	27.1 
30	27.8 
31	27.9 
32	26.9 
33	26.9 
34	27.0 
35	27.8 
36	27.4 
37	28.6 
38	27.3 
39	25.8 
40	25.8 
41	25.9 
42	26.0 
43	25.1 
44	25.0 
45	24.6 
46	25.0 
47	24.6 
48	24.2 
49	23.5 
50	23.3 
51	23.0 
52	22.5 
53