How many degrees was the extreme cold in Jinan’s history?

The most extreme cold in the history of Jinan was on January 5, 1970, when the lowest temperature in urban Jinan reached -16.1℃.

Jinan is located in the mid-latitude zone. Due to the influence of solar radiation, atmospheric circulation and geographical environment, it has a warm temperate semi-humid monsoon climate.

It is characterized by distinct monsoons and four distinct seasons, with drought and little rain in spring, warm and rainy summers, cool and dry autumn, and cold and snowy winters.

The annual average temperature is 13.8°C, the frost-free period is 178 days, the highest temperature is 42.5°C (July 24, 1955), and the lowest temperature is minus 19.7°C (January 17, 1953).

The highest monthly average temperature is 27.2℃ (July), and the lowest monthly average temperature is -3.2℃ (January).

The average annual precipitation is 685 mm.

The annual sunshine hours are 1870.9 hours (2009).

In winter, the Mongolian high pressure forms in the northern part of the Asian continent. Jinan is controlled by the polar continental air mass and is often invaded by cold air from the north. It is cold and sunny, with less rain and snow, and more northerly winds.

In summer, affected by tropical and subtropical oceanic air masses, warm and moist air currents from the ocean prevail. The weather is hot, with abundant rainfall, sufficient sunshine, and mostly southerly winds.

Spring and autumn are the transition seasons from winter to summer and summer to winter, and the wind direction changes.

Throughout the year and in different seasons, Jinan City is under the control of different atmospheric circulations, forming a climate with distinct four-season changes: warm spring, hot summer, cool autumn, and cold winter.

The winter in Jinan lasts 136 to 157 days, usually from early November to late March of the following year; the summer lasts from 105 to 120 days, usually from late May to early September; spring and autumn are the shortest, Both are less than two months old.

In addition, the terrain is surrounded by mountains on three sides, which makes it difficult for water vapor and hot air to accumulate and spread, resulting in more precipitation than ordinary northern cities in summer.