A year ago, my grandson created a large flat world on PS4, which both of us have been building and adding to. Initially
only small villages and animals were in this flat world to begin with. We added more towns and buildings from Minecraft manuals, such as mediaeval castle,
cities, lakes, forests etc. My only grip is that it rains, and rains, and rains. Yes, the lightening during night cycle is impressive, but it still only rains.[/p]
[p]We created winter cottage within a pine forest and small lakes, all covered over with top snow layer (78) on the trees, ground, cottage and ice block layer over the lakes, but it only rains. I am sure that Minecraft software could be adapted to performing snow particles to form over snow layers if the area covered exceeded say 1k snow layers squared or more. So, when it rains the 10 to 20 blocks above a snow layer would convert to snow particles.[/p]
[p]What say you, Mojang?[/p]
In the Java Edition at least there's even a preset called Snowy Kingdom using the Snowy Tundra biome, it snows there.
It's too bad if you didn't know about the possibility when you started your world but there doesn't seem to be any reason to change the game to add something that can already be done in a different way.