How does the weather change face?

The weather in spring? Love to change face? Especially when the temperature is capricious or the roller coaster fluctuates. Recently, the temperature in many places is jumping up and down. When the temperature is high, it can soar above 20℃. There is a feeling of early summer, when the temperature is low, it can be as low as 0℃, as if it is back to the end of winter. ? Willful? The weather is a bit chaotic, so it is inevitable to enter? Dressing indiscriminately? Model.

1. Is it normal to be in the adjustment period of atmospheric circulation in spring?

People can't help asking, is this temperature abnormal? Will the temperature be higher this year than in previous years? In this regard, meteorologists said that high temperature weather above 35℃ in April is not uncommon in the history of our province. It is normal for the temperature to fluctuate in spring. People generally regard spring as the beginning of a year, and everything is revived and full of vitality. Spring is the season with the biggest weather change in a year, and it is also the season when the temperature changes from warm to cold and suddenly changes. This is because spring is in the adjustment period of atmospheric circulation, and cold and warm air activities are frequent. In addition to the great temperature change, dry air and windy weather are another feature. From the meteorological point of view, the spring in the north is the period when the atmospheric circulation system changes from winter to summer. It is often said that the cold air from high latitudes is still very active during this period, and there are also windy weather accompanied by cold air.

Second, what is a spring neck?

Spring neck means spring neck. As a popular meteorological proverb in the north, spring neck or spring neck is related to sowing. As far as solar terms are concerned, spring neck refers to the preparation stage of farming from the thawing of the Houhe River in beginning of spring to spring sowing. The length of the spring neck depends on whether beginning of spring is before or after the Spring Festival. Generally speaking, the year before beginning of spring Festival is called Spring Neck Short, and the year after beginning of spring Festival is called Spring Neck Long.

Third, in spring, the neck is short, it warms up early, and there are often colds in spring.

Late spring cold is an abnormal weather that is prone to occur in some parts of China in spring. The concept of "late spring cold" originated from agricultural production, which mainly refers to the weather phenomenon or weather process that after the spring, when the average temperature in some areas exceeds 10℃, it is frequently attacked by strong cold air, resulting in a rapid drop in local temperature, which first warms and then cools, and then lasts for more than 7 15 days, resulting in a large-scale freezing injury to crops. In meteorology, spring is the season with the greatest changes in meteorological elements such as temperature, airflow and air pressure. The changeable climate, initial cold, large temperature difference between day and night, and frequent cold air activities are also prominent features of China's spring climate. Usually, people are used to taking the end of February and the beginning of March as the beginning of spring. In March of spring, affected by cold air, a weather process with daily average temperature lower than or equal to 12℃ and duration longer than or equal to 3 days suddenly appeared, which is recognized as the standard of late spring cold in agrometeorology.