Why is the weather still so cold here in April this year?

On the 6th, strong cold air will continue to affect East China and South China. The temperature will drop by 6-8℃, and there will be strong winds of magnitude 7-9 and gusts of magnitude 10-11 in the eastern sea area. There will be light to moderate snow or sleet in eastern Jilin and eastern Heilongjiang, and localized heavy snow or blizzard.

From the 7th to the 9th, a moderate-intensity cold air will affect northern my country from west to east. The temperature will drop by 4-8℃, accompanied by winds of level 4-6, and there will be sand and dust in parts of the northwest. There was light to moderate snow or sleet in most parts of eastern Inner Mongolia and northeastern Inner Mongolia. On the 8th, there was local heavy to heavy snowfall in eastern Jilin. There was rainfall in some areas in the south. On the 9th, there was moderate to heavy rain and local heavy rain in southern Jiangnan and South China.

From the 13th to the 15th, strong cold air will affect most areas in central and eastern my country.