Traditional Culture Encyclopedia - Weather inquiry - Who will help me write an investigation report on the climate and characteristics of Jiaxing area?

Who will help me write an investigation report on the climate and characteristics of Jiaxing area?

Jiaxing City is located in the southern edge of the northern subtropical zone and belongs to the East Asian monsoon region. It has obvious alternation of winter and summer monsoon, distinct four seasons, moderate temperature, abundant rain and sunshine, and has the characteristics of wet in spring, hot in summer, dry in autumn and cold in winter. Because of its mid-latitude, the hot and humid weather in summer is much shorter than the dry weather in winter.

The annual average temperature is 65438 05.9℃. 65438+ 10 is the coldest month with an average monthly temperature of 3.6℃; Extreme minimum temperature-1 1.9℃? Appeared on 1977 1 month 3 1 day; It is the hottest in July, with an average monthly temperature of 28. 1℃. The extreme maximum temperature was 39.4℃, which appeared on1August 26th, 953. The first day when the daily average temperature rises steadily through 10℃ is April 1 day, and the average ending day is1October 1 18; The average last frost date is March 27th, the average first frost date is165438+1October 13, and the average frost-free period is 230 days. Average first ice day165438+1October 27th.

The average annual precipitation 1 168.6 mm, and the maximum annual precipitation 1720mm appears in1954; The minimum precipitation of 757mm occurred in 1978. There are three obvious precipitation periods throughout the year, namely the spring rain from April to May; Meiyu in June-July and autumn rain in September; 65438+ 10 is the month with the most snow.

The annual average sunshine is 20 17 hours. Among them, July and August are the most, and the average monthly sunshine is 239 and 24 1 hour respectively. 1 and February are the least months, and the average monthly sunshine hours are 134 and 124 hours respectively. The annual average evaporation is1313 mm; The annual average relative humidity is 865438 0%.

The main disastrous weather includes rainstorm, continuous rain, drought, cold wave, heavy snow, fog, high temperature, typhoon and tropical cyclone.

Jiaxing city is low-lying, with an average elevation of 3.7 meters (Wusong elevation), of which Xiuzhou District and northern Jiashan are the lowest, and its ground elevation is generally between 3.2 meters and 3.6 meters, and some lowlands are 2.8 meters to 3.0 meters.

There are more than 200 hills in the city, scattered on the north bank of Hangzhou Bay in Qiantang River, with the elevation mostly below 200 meters. The highest point of the city is Gaoyang Mountain, which is located at the junction of Haiyan and Haining. The city is a shallow dish-shaped depression near Taihu Lake, and the terrain is generally inclined from southeast to northwest. Due to thousands of years of human reclamation and development, the plain is divided by criss-crossing ponds and canals, and fields, land and water are interlaced, forming a three-dimensional topographic structure of "six fields, one water and three points". Mulberry is planted in dry land, grain is grown in paddy field, and fish is raised in lakes. The artificial landform is obvious and the characteristics of water towns are rich.