20 15 12.22 (Tuesday):
Xi 'an: during the day, it is cloudy, and at night, it is snowy -2 ~ 5℃ northeast wind;
Beijing: cloudy during the day, sunny at night -4 ~ 4℃, with no continuous wind and breeze.
Shanghai: day: light rain, night: moderate rain 7 ~ 13℃ southeast wind breeze.
Jinan: During the day, it is cloudy, and at night, it is snowy and southerly at 2 ~ 4℃.
Haikou: cloudy during the day, light rain at night: 22 ~ 25℃ southeast wind 3-4.