I've never stopped to think about the meaning of "wuthering", to be honest. There are many northern English place names that come from fairly obscure, often Viking, backgrounds. In this case, however, I think Merriam-Webster online may have the answer:
Etymology:alteration of whither
to rush, bluster, hurl
dialect English: to blow with a dull roaring sound
By the way, I reached this definition quite easily from the Word Reference website, by putting wuthering into the Dictionary look-up box at the top of the page, set to English definition, and then selecting the link to Merriam-Webster.
I hope that is of use to you, and I hope you don't mind the small corrections I have made in quoting your post. The forum rules ask us to use standard punctuation, including capital letters at the beginning of sentences and a capital "I" for the first person singular pronoun.
EDIT: By the way, Cypherpunk is completely correct in saying that a wider discussion of the reasons for the book being entitled Wuthering Heights is beyond the scope of this forum. Hopefully I've stuck to giving a purely "English usage"-oriented answer!