20 13 weather. When will this cold current end?

The climate is getting warmer in early spring, but in some years, the temperature in March will suddenly drop, just like in winter, which is called "late spring cold".

In early spring (generally refers to March), the temperature rises rapidly, while in late spring (generally refers to April or May), the five-day average temperature is more than 2℃ lower than normal, which is called late spring cold. In the process of heating up in spring, due to the invasion of cold air, the temperature drops obviously, and there is a weather of "warm before cold", that is, beginning of spring is cold after cold. There is no specific time. This is a seasonal anomaly. Basically, it will be fine in June.