Is there Snow in May ?

Hello,I am Thais.
I plan to go to japan for 2 weeks in next year with my friends.
But they can go only in May.
So I plan to go in early May (after golden week).
I heard that in north region like Hokkaido in early May I still can find Skaura blossum,ain't I ?
But some of my friends never see the snow before so I plan to see snow in Hokkaido too.

My question,
1. Where can I find snow in early May ? Sapporo ?
2. Can I see Sakura blossum in eary May ?

Thank you for every answer and sorry for my bad English.

Domo Aligato Ngosaimus and Kobkoon Klab (Thanks in Japanese and Thai)

I heard that in north region like Hokkaido in early May I still can find Skaura blossum,ain't I ?

Yes, that is right! Details are here:
http://www.japan-guide.com/e/e2011_when.html

1. Where can I find snow in early May ?

In higher elevations of Hokkaido or the Japanese Alps. One of the best places to see snow in May is the Kurobe-Tateyama Alpen Route:
http://www.japan-guide.com/e/e7550.html

Sapporo ?

No.

Thank you ,Uji.
That's help me a lot.