Why does it snow in Hubei in March?

It is normal to snow. In February and March every year, there are frequent cold air activities in Siberia and strong warm and humid airflow in the southwest, so it may snow when they meet. If you can't say beginning of spring, you can't stop. There is a proverb here: The frost and snow in Qingming Grain Rain are broken. It is said that it may not snow after the Qingming Festival and the solar terms in Grain Rain. I wonder if you have noticed that it snowed in Wuhan on March 20 last year, and the temperature was as high as 20 degrees the day before.