Why is Jinan so cold this winter?

Surrounded by mountains in the north of Jinan, it has a temperate monsoon climate. According to Netease News Network.

1, the north is blocked by mountains, which makes the south wind easily bound in winter, leading to the urban heat island effect, thus forming low temperature weather.

Jinan belongs to temperate monsoon climate. Winter is cold and long, which is less affected by the ocean monsoon and the air is relatively dry.