How many words have Eskimos for snow?

It is a popular misconception that the Inuit have many words for snow. The words may differ according to the number of tribes, but generally there is no more words in Inuit that in English. The hoax...

Let it snow, let it snow, let it snow! Jungle Bells (Dashing through the snow)

Most eskimo groups have only 2 words for snow, but all the inuit languages taken into account there is only 4 words for snow in total.

only one: hau

one