What are the climate types and characteristics of Ningbo?

Ningbo is close to the sea and belongs to the humid monsoon climate in the north subtropical zone, and the south has the characteristics of transition to the middle subtropical zone. Winter is mainly controlled by the cold air in the westerlies. In summer, affected by subtropical high, typhoon and southwest airflow, there are many abnormal weather. Xia Dong is long, short in spring and autumn, with distinct seasons, obvious monsoon alternation, abundant rainfall, warmth and humidity.

The annual average temperature 16.2℃ is higher in coastal areas than inland areas. The lowest monthly average temperature is 4.2℃. The average temperature in the hottest month is 28℃, and the extreme minimum temperature is-1 1. 1℃. The extreme maximum temperature is 465438 0.2℃, and the frost-free period is 230 ~ 240 d; The active accumulated temperature is ≥ 10℃ in the plain and ≥40 13℃ in the mountainous area. The rainfall distribution in the south is more than that in the north, and the coastal area increases inland. Two rainy centers, namely, Shuangfeng in Ninghai and Dalan in Siming Mountain, have an annual precipitation exceeding 1700mm, with a maximum of 1900 mm, and the northern coast is rainless. The annual precipitation is less than 1 000 mm, which varies greatly during the year. Precipitation is unevenly distributed during the year, which belongs to the main control area of typhoon and rainstorm. The annual distribution of rainfall is bimodal. The first rainy period is spring rain and plum rain from March to July, in which spring rain accounts for 26.54% of the total annual rainfall and plum rain from June to July accounts for 24.52%. The second rainy season is from August to July. Accounting for 24.54%. The average annual precipitation days are 159 days. The annual average evaporation is1300 ~1500mm. The relative humidity is 8 1%. The annual sunshine hours are 1927.8h, and the total solar radiation is 109.5kcal/cm2.

Our city belongs to the second-class typhoon-affected area, with an average of 1.8 times a year, with an impact period of 5 ~ 165438+ 10 month, in which August ~ September is the concentrated impact period. Other disastrous weather includes high temperature and drought, low temperature in spring and autumn, continuous rain and hail.