The weather in Jiaxing in September

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 is located in the northeast of Zhejiang Province, in the hinterland of Hangjiahu Plain in the Yangtze River Delta. It is one of the important cities in the Yangtze River Delta and is listed as an open coastal economic zone by the state. The city boundary is between east longitude 120 18' and north latitude 12 16' and north latitude 30 2 1', with the sea in the east, Qiantang River in the south and Taihu Lake in the north. The city is located at the intersection of rivers, lakes and rivers, bordering the throat of Hunan Corridor, bordering Shanghai in the east, Suzhou in the north, Huzhou in the west and Jiaxing in the south, all of which are less than100km apart. Jiaxing Bay all over the country can echo Ningbo, Shaoxing, Zhoushan and other places. Railway, highway and waterway networks are intertwined, extending in all directions, and the traffic is very convenient.

The city's land area is 92 kilometers long from east to west, 76 kilometers wide from north to south, and 39 15 square kilometers, including 3,477 square kilometers of plains, 328 square kilometers of water surface, 40 square kilometers of hills and mountains, and 4,650 square kilometers of urban waters.

The city is flat, with an average elevation of 3.7 meters (Wusong elevation), with Xiuzhou District and northern Jiashan being the lowest, and its ground elevation is generally between 3.2 and 3.6 meters, and some lowlands are 2.8 to 3.0 meters. There are more than 200 hills in the city, scattered on the north bank of Jiaxing Bay in Qiantang River, most of which are below 200 meters above sea level. 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.