Characteristics of subtropical climate types
The subtropical monsoon climate is distributed on the east coast of subtropical continent at 25 ~ 35 north latitude, and it is a zone where tropical marine air masses and polar continental air masses alternately control and compete with each other. It is mainly distributed in the south of Huaihe River in Qinling Mountains in eastern China, north of tropical monsoon climate, south of Japan and south of Korean Peninsula. It's not cold here in winter. The average temperature in 65438+ 10 is generally above 0℃, and it is hot in summer. The average temperature in July is generally around 25℃, and the direction of Xia Feng changes obviously in winter. The annual precipitation is generally above 1000 mm, mainly concentrated in summer and less in winter. This climate is most typical in the southeast of China. In other areas, because there is a considerable amount of precipitation in winter, there is little difference between winter and summer, so it is called subtropical monsoon humid climate.
1, the child's face changes three times a day in spring.
2. Early summer gradually enters the flood season, commonly known as the "Meiyu" season.
3. Midsummer drought or strong typhoon rainstorm
4. It is prone to intermittent rainy weather in early autumn, commonly known as "Autumn Lazar"; 5. In the middle of autumn, controlled by the high-pressure weather system, it is easy to have clear Wan Li and sunny autumn weather, which is the so-called "October Xiaoyangchun" weather;
6. In late autumn, the influence of cold air in the north began to increase, and the transition process between cold and warm weather and sunny and rainy weather was frequent, and the temperature fluctuated greatly.
7. It's sunny and cold in winter, with little rain and dry air.
In spring, the East Asian monsoon is in the alternate season between the winter wind direction and the summer monsoon. The north-south airflow frequently meets, and the low pressure and frontal activity intensify. The climate in spring is characterized by cold and rainy weather, frequent coastal and offshore winds, more rain in the whole province and uncertain weather. As the saying goes, "three faces change in spring." The average temperature in spring is 13 ~ 18℃, and the temperature distribution has the characteristics of decreasing from inland areas to coastal and island areas; The precipitation is 320 ~ 700 mm, and the distribution of precipitation gradually decreases from southwest to northeast coastal areas; Rainy days 4 1 ~ 62 days. The main meteorological disasters in spring are rainstorm, hail, strong wind and low temperature in late spring.
In summer, with the establishment of the summer monsoon circulation system, the southeast wind prevails, and the subtropical high activity in the northwest Pacific has an important impact on the weather, while the cold air from north to south still has a certain impact on the weather. Early summer gradually enters the flood season, commonly known as "Meiyu" season, and the probability of heavy rain and heavy rain increases, which is easy to cause floods; In midsummer, affected by subtropical high, it is easy to have sunny and hot weather with little rain, resulting in drought; Summer is the period when tropical storms have the greatest impact.
Summer climate is characterized by high temperature, abundant precipitation, strong illumination, humid air and frequent meteorological disasters. The average temperature in summer is 24 ~ 28℃, and the temperature distribution is decreasing from the central area to the surrounding areas. The precipitation is 290 ~ 750 mm in various places, with more precipitation in eastern mountainous areas and less precipitation in islands and central areas; Rainy days are 32 ~ 55 days. The main meteorological disasters in summer are typhoon, rainstorm, drought, high temperature, thunderstorm, strong wind and tornado.
In autumn, the summer monsoon gradually weakens and transitions to the winter monsoon. Cyclone activity is frequent, frontal precipitation is more, and temperature changes greatly. Autumn climate characteristics: intermittent rainy weather is easy to appear in early autumn, commonly known as "autumn Lazar"; In the Mid-Autumn Festival, controlled by the high-pressure weather system, it is easy to have crisp and sunny weather in autumn, that is, the so-called "October Xiaoyangchun" weather; In late autumn, the influence of cold air in the north began to increase, and the conversion process between cold and warm weather and sunny and rainy weather was frequent, and the temperature fluctuated greatly. In autumn, the average temperature is 16 ~ 2 1℃, which is higher in the southeast coastal and central areas and lower in the northwest mountainous areas. The precipitation is 2 10 ~ 430mm, with more precipitation in the central and southern coastal mountainous areas and less precipitation in the northeast, but its interannual variation is great. It rains all over the province for 28 ~ 42 days. The main meteorological disasters in autumn are typhoon, rainstorm, low temperature, rainy weather and fog.
In winter, the strength of winter monsoon in East Asia mainly depends on the activity of Mongolian cold high pressure, and the weather is affected by the cold air mass in the north (that is, winter monsoon), and there are relatively few types of weather processes. Winter climate is characterized by abundant sunshine, cold and little rain, and dry air. The average winter temperature in the whole province is 3 ~ 9℃, and the temperature distribution is decreasing from south to north and from east to west. Precipitation 140 ~ 250 mm, except for the northeast islands, there is little difference in other places; Rainy days are 28 ~ 4 1 day. The main meteorological disasters in winter are cold wave, freezing injury, strong wind, heavy snow and fog.