202 1 How many days are there in the rainy season?

Meiyu season is a very common weather and climate, which generally appears in the south of China, especially in the Yangtze River basin. In the rainy season, there will be continuous rainy weather, and the weather is relatively humid. So how many days are there in the rainy season of 202 1? Let's take a closer look!

1. How many days are there in the rainy season in 20021year? The rainy season of 20021year: June 7, 20021year-1year, lasting 34 days.

In the middle and lower reaches of the Yangtze River in China, the rainy season is from late June to early July every year. At this time, the sky was cloudy for many days and the precipitation continued. As the saying goes, "rain hits Huangmeitou, and the sun is not seen for forty-five days", which is the characteristic of high temperature and high humidity in rainy season. Not only that, coastal cities in South China will also be hit by typhoons, the weather and humidity will increase, clothes and homes will also be damaged, and they will be more susceptible to mildew and moisture.

Plum entry: the average temperature exceeds 22℃ for 5 consecutive days, and it will only be counted as plum entry if it rains for 4 consecutive days; Plum blossom: On the contrary, if the average temperature exceeds 30℃ for five consecutive days and it doesn't rain, it means plum blossom.

Therefore, the rainy season depends on the weather, and there is no specific time setting.

Second, the cause of the rainy season Every year from late April to early May, cold air from the north and warm air from the south meet in South China, forming a quasi-static front in South China. Around the end of May, the influence of warm air increased, and the quasi-static front moved northward to the Jianghuai area, forming the quasi-static front of Jianghuai (also known as Meiyu front). Because the warm air from the south carries a lot of water vapor, a lot of convective activities will occur when it meets the cold air mass. Because of the strong cold and warm air during this period, the front is still in the Jianghuai area.

The typical plum rain "enters the plum blossom" in the middle and late June and "leaves the plum blossom" from the beginning of July to the middle of July. Meiyu is a rainy day before Meiyu, which usually starts in mid-April and lasts for about half a month.

Third, the rainy season precautions 1, do not eat overnight dishes. The rainy season often has the characteristics of high temperature, high humidity and low pressure, which is suitable for the growth and reproduction of mold. Mycotoxin can cause acute poisoning, chronic poisoning, teratogenesis and carcinogenesis. Therefore, the rainy season is also a high incidence period of bacterial food poisoning. In diet, we should pay attention to the separation of raw and cooked food to avoid cross-infection; At room temperature, the storage time of food is generally less than 2 hours, and fresh vegetables should not be eaten overnight or every other meal. Usually eat light and digestible foods, such as melon, loofah, bitter gourd and mung bean soup.

2. Traveling without washing the car is not only rainy, but also disastrous weather such as heavy rain and lightning has begun to increase. When driving, the visibility is low, the road surface is slippery, and the vehicle is easy to slip. Drive carefully. Pay attention to the weather forecast before going out and get ready in advance. For car owners, there is no need to spend money and time washing cars recently.

3. Families should seize the opportunity to dry clothes and quilts. Meiyu, also called "mildew rain", is naturally hot and humid. Carpets, cotton-padded clothes, furniture, etc. It may be damp and moldy. The surface of furniture should be cleared of moisture; Use the intermittent precipitation period to expose sofas, carpets and quilts to the sun. Such as hair dryers and electric irons, can be used to dehumidify. Don't forget the dehumidification function of the air conditioner. When the room temperature drops to about 22℃, the relative humidity can be reduced by about 50%. Keeping home appliances in standby state in time can also disperse water.