The weather in early spring is changeable. Why does such weather change occur?
The weather in spring is very changeable, especially when the temperature fluctuates or fluctuates like a roller coaster. Recently, the temperature in many places has been fluctuating. When the temperature is high, it can soar above 20℃, giving a vague feeling of early summer. When the temperature is low, it can drop below 0℃, which seems to have returned to the end of winter. The "willful" weather makes people a little confused and inevitably enters the mode of "dressing randomly".
1. Spring is in the period of atmospheric circulation adjustment. Is it normal for the temperature to fluctuate?
People can’t help but ask, is such a temperature abnormal? Will the temperature be higher this year than in previous years? In this regard, meteorological experts said that high temperature weather above 35°C in April is not uncommon in the history of our province. It is very normal for temperatures to fluctuate in spring. People generally regard spring as the beginning of the year, when everything is renewed and full of vitality. Spring is the season with the greatest weather changes in a year, and it is also the season when the temperature changes from warm to cold and suddenly changes from cold to warm. This is because spring is in a period of atmospheric circulation adjustment, with frequent warm and cold air movements. In addition to the large temperature changes, dry air and windy weather are another feature. From a meteorological point of view, spring in the north is the period when the atmospheric circulation system transitions from the winter half of the year to the summer half of the year. It is often said that the cold air turns from warm to cold, which means that the cold air from high latitudes is still very active during this period, and at the same time Along with the cold air comes windy weather.
2. What is spring neck?
Spring neck refers to spring neck. As a popular meteorological proverb in the north, spring neck or spring neck is related to sowing. In terms of solar terms, spring neck refers to the stage of preparation for farming and production from the thaw of rivers after the beginning of spring until spring plowing and sowing. The length of the spring neck depends on whether the beginning of spring of that year comes before the Spring Festival or after the Spring Festival. Generally, the years when spring begins before the Spring Festival are called spring neck short, and the years when spring begins after the Spring Festival are called spring neck long.
3. Spring is short-necked, warms up early, and late-spring cold often occurs
Late-spring cold is an abnormal weather that is prone to occur in spring in some areas of my country. The concept of late spring cold originated from agricultural production. It mainly refers to the fact that after spring, when the average temperature in certain areas exceeds 10°C in climatology, they are frequently attacked by strong cold air, causing the local temperature to change rapidly. It drops, warm at first and cold at the end, and the duration of the cold at the end lasts for more than 7 to 15 days, causing a weather phenomenon or weather process in which crops suffer widespread freezing damage. In meteorology, spring is the season when meteorological elements such as temperature, air flow, and air pressure change most erratically. The climate is changeable, from warm to cold, the temperature difference between day and night is large, and cold air activities are frequent, which are also the outstanding characteristics of my country's spring climate. Usually, people are accustomed to entering late February and early March as the beginning of spring. When entering spring from March to May, due to the influence of cold air, a weather process in which the daily average temperature is less than or equal to 12°C and lasts for more than or equal to 3 days or more, which is not conducive to the growth of seedlings, is agricultural meteorology. The late spring cold standard recognized above.