Ask experts to answer the weather in northern China on 20 17.

The climate in northern China is mainly temperate monsoon. The climate is characterized by four distinct seasons, warm and rainy summer and cold and dry winter.

The annual precipitation in the northern region is mostly 400-800 mm, and the precipitation is concentrated in

There are heavy rains in July and August. At this time, the river is skyrocketing and the river is easy to flood.

But every spring, there is little rain and frequent drought (severe spring drought and heavy rain in summer).

Since 1992, except for 1998, the precipitation in northern China in February and April in other years is lower than the average for many years. At this time, under the influence of La Nina phenomenon, the northerly airflow prevails in northern China, while the warm and humid airflow in the southeast is relatively weak. Coupled with the unfavorable cooperation of cold and warm air, the northern region has not formed ideal rainfall conditions, resulting in continuous lack of rain and drought.