When did Jinan start to cool down?

The summer in Jinan is 105 ~ 120 days, usually from late May to early September, and it will be much cooler after September. Jinan is located in the mid-latitude zone and belongs to the continental monsoon climate of warm temperate zone. Its main climatic characteristics are: the monsoon is obvious and the four seasons are distinct; In winter, Leng Xia is hot and the rainfall is concentrated. The monsoon is obvious and the four seasons are distinct.

In winter, Mongolian high is formed in the northern part of Asian continent, and Jinan is controlled by denatured polar continental air mass and often attacked by cold air in the north. The weather is cold and sunny, with little rain and snow and northerly winds.

In summer, influenced by tropical and subtropical ocean air masses, warm and humid air currents prevail in the ocean, with hot weather, abundant rainfall, abundant sunshine and southerly winds.