What month is the twelfth lunar month?
1February is a cold season in a year, and it is also a season when cold air moves from north to south, in which the north is the most common in this season. The southwest wind refers to the wind blowing from the southwest to the northeast, just at an altitude of 3 15 degrees. Meteorology determines the wind direction as the wind direction. Southwest wind, in this season, is undoubtedly a "cold or not cold" climate phenomenon in winter.
If there is neither heavy snow nor cold wave in these three months, and the weather is clear and calm, it means that winter should be warm. Such a climate will lead to more crop diseases and insect pests in the coming year because it can't freeze the pests in the field. It leads to a reduction in grain production, which is very unfavorable to agricultural production.
Climate change in December
1. cooling: during this period, the temperature will drop obviously, especially in the northern region. The highest temperature during the day may be only a few degrees to a dozen degrees, and it is colder at night, which may reach MINUS or even lower temperatures.
2. Rainy weather: October is often accompanied by frequent rainy weather, including Mao Mao rain, snowflakes, freezing rain and other forms. There may be showers and haze in the south.
3. Strong wind and cold air: Cold wave and cold air attacks often occur in this season, accompanied by strong wind and cold air, which reduces the somatosensory temperature. Especially in the north, there may be strong winds or northeast winds, which will aggravate the cold degree.
4. Short sunshine time: In winter, due to the inclination angle, the height of the sun is low and the sunshine time is relatively short. The daytime is short, and the night accounts for a large proportion of the time.
5. Fog and frost: Due to the low temperature, water condenses to form fog and frost. Especially in the morning and evening, there may be situations such as road icing and vehicle visibility reduction.