The 2016 Snow Festival will be held from February 5 through February 11
The Sapporo Snow Festival (Sapporo Yuki Matsuri) is held during one week every February in Hokkaido's capital Sapporo. It is one of Japan's most popular winter events.
The Sapporo Snow Festival was started in 1950, when high school students built a few snow statues in Odori Park. It has since developed into a large, commercialized event, featuring spectacular snow and ice sculptures and attracting more than two million visitors from Japan and across the world.
From:
http://www.japan-guide.com/e/e5311.html