通过普查1961年以来的气象资料,分析吉林省四平市霜冻的时间分布特征,找出霜冻出现时的气象要素特征及地面天气形势,发现出现霜冻时天空要晴朗少云且风速小,地面多位于弱高压的前部或受高压控制。同时,制作地面最低气温预报方程,经过回代与预报检验,预报效果较好。 Through the census of meteorological data since 1961, the time distribution characteristics of frost in Siping City of Jilin Province were analyzed to find out the features of meteorological elements and the weather conditions of the ground when the frost appeared. It was found that when the frost appeared, the sky should be clear and less cloudy with a small wind speed, Weak high pressure front or by high pressure control. At the same time, the prediction equation of the minimum ground air temperature is produced, and the forecast result is better after the generation and forecast test.