What is the coldest biome in minecraft?

Seed: randomannoyingfly

The coldest is the snow biome or the ice spike biome if your on pc. Also a seed i have used on pc is KOOL kat and for my xbox version i used pressure. Hope i helped

On PS3/X360 and on PS4/X1 opening map, "mountain dragon" gives you an all snow area with mountains, a few trees, and plains.

You don't need a seed. These biomes appear in all worlds. Different seeds just put them further or closer to the spawn, that is all.

Jungle

There's a lot of trees especially big ones and you can make a huge tree house

But sand biome is my fav because it dose not rain or snow and I can run from mobs without bumping into trees and what so ever

Well I'd say Ice Spike