Huaian postal code

Huaian is located in the central area of northern Jiangsu Province. Lianyungang City in the north, Yancheng City in the east, Yangzhou City and Chuzhou City in Anhui Province in the south and Suqian City in the west. The maximum linear distance from east to west 132km, the maximum linear distance from north to south 150km, and the area 10030km2.

Huai 'an is high in the west and low in the east. Except for hills and hills in Xuyi County, southwest of the city, the whole city is dominated by plains with flat terrain. Plain area accounts for 69.39% of the total area, lake area accounts for 1 1.39%, and hilly area accounts for 18.32%.

Huaian is located at the junction of warm temperate zone and subtropical zone in China, with the characteristics of north-south climate. Generally speaking, the south of the main irrigation canal in northern Jiangsu belongs to the humid monsoon climate in the north subtropical zone, and the north belongs to the semi-humid monsoon climate in the north temperate zone. Influenced by the monsoon climate, Huai 'an has four distinct seasons, with concentrated rainfall and the same season of rain and heat. Leng Xia is hot in winter, and the temperature in spring is changeable. In autumn, the air is fresh, with sufficient light energy and heat.

Physical geography of Huaian city

The total annual solar radiation in Huai 'an is between110-119kcal/cm2, and the distribution of solar radiation in the whole city is mostly in the north and less in the south. The annual sunshine hours in the city are between 2 136-24 1 1 hour, and the sunshine hours are mostly distributed in the north and less in the south. The annual average temperature in Huai 'an is 14. 1- 14.8 degrees Celsius, which is basically high in the south and low in the north. Influenced by the water body of Hongze Lake, a warm center was formed in Hongze Lake area.

The annual distribution of temperature is the highest in July and the lowest in 65438+ 10. The annual frost-free period in the city is generally about 2 10-225 days, with the north being shorter and the south being longer. Affected by the water body in Hongze Lake area, the frost-free period in Hongze District is as long as 236 days. The average annual precipitation in Huai 'an is between 906- 1007mm. The distribution of precipitation is characterized by more in the south and less in the north and less in the east and west.

Precipitation changes obviously during the year, concentrated in summer. At the turn of spring and summer, there are many frontal rains in the mature season of plums, which are called "plum rain" or "mildew rain". The distribution of precipitation is uneven during the year. The maximum annual precipitation is more than 1700 mm, and the minimum annual precipitation is only 500 mm. The average annual wind speed in Huai 'an is 2.9-3.6m/s, mainly easterly and southwest winds.

Reference to the above content: Baidu Encyclopedia-Huaian