Phân tích chất lượng không khí lịch sử Wanquan Third Junior High School, Zhangjiakou, Hebei, China

19°C14/25°C

16°C13/21°C

15°C12/20°C

15°C12/18°C

13°C10/18°C

14°C8/19°C

16°C13/21°C

16°C11/22°C

15°C10/21°C

14°C12/16°C

14°C11/17°C

15°C11/22°C

16°C11/21°C

16°C13/21°C

16°C14/20°C

17°C13/23°C

16°C13/22°C

16°C11/23°C

17°C12/22°C

18°C14/22°C

16°C13/20°C

17°C13/22°C

16°C13/19°C

14°C13/18°C

15°C12/20°C

10°C7/11°C

8°C8/8°C

9°C8/12°C

13°C10/18°C

13°C11/16°C

--°C/°C