Possibly putting it on dry ice?

Awe! You are too sweet! I honestly have no idea! Send her a snow globe! ;^) Good Luck! I'm sure someone way more intelligent then me will know!

That's really cool that you would want to do that. I grew up with snow, and have traveled to many places where it was snowing. The biggest problem is not getting it there, the problem is explaining the scene where the snow came from. Since you can have wet snow, dry snow, white snow, powdery snow, sticky snow, blue snow, snow stuck to a pine tree, snow tickling your face, heavy snow that you are shoveling, snow that makes that perfect snowball, white out blizzard snow, etc. You cannot convey that by sending some and not knowing how it's going to arrive. Take a picture of your favorite snow scene (one of mine is on a mountaintop looking down at a blue glacial lake). Print it out as big and clear as you can. And describe in a letter as best you can the smells, how your skin felt, if you had that sticky nose feeling (those who have been there know what I am talking about), was the air crisp and dry, was the snow fresh and powdered or crunchy when you walked on it. Use a camera and a tape recorder. A good description and some pictures will help. If you do want to send her some snow, you will need to put it in a baggy, wrapped in bubblewrap, in another baggy, then wrap it in butcher paper, than pack it in dry ice. But there is no promise it will get there as you remember it.

Ship it to her in an ice chest or something refrigerated and sealed.

Give her/him a snow globe!