Whats the Average Temperature in China in March?

Whats the Average Temperature in China in March?
there is a big differnece between the northern and the southern part of China. It's snowing and only -5C in Beijing now; but about 18C in Hong Kong!! It could be 10 degrees different between day and night time. ask smartly!
Whats the Average Temperature in China in March?
Why do they call it average.It varies at any time.
Why do they call it average.It varies at any time.
Where in china? Need more information, like cities or which part of china you are talking about. from North to South its quit a big different.
Beijing is very cold, seasonal temperature Shanghai is like NY temp and Hongkong is like Miami temp but more humid.