Definition: In this task, you need to generate an appropriate title for the given summary of some paragraph. The generated title must be short and should include the main topic of the given text. Your summary should be less than 20 words long.
Input: A wet, but mild, December was a record-breaking month, the UK Met Office's final figures show - so why was it so extreme and can we expect more of the same?

Wettest and warmest December 'won’t become norm for decades'