Snowfall

Snowfall is an element in the game. Much like rain, it is a type of weather. It currently exists in the Beta version of the game.

Behavior
Snowfall happens occasionally and will only fall in the Tundra and Taiga biomes and causes water that does not have a block above it to become ice, as well as covering all blocks in snow with the exception of transparent blocks. Snowfall will happen at the same time as rain is falling. If you are between a biome that produces rain and another that produces snow, you can see both snow and rain.

Rain and snow

 * Rain and snowfall are temporary but global occurrences.
 * During rain and snow, thunderstorms become possible.
 * Rain and snowfalls decrease the light level by 3, to light level 12 in full daylight.

Snowfall only

 * Ice and snow regenerate whilst snowing.

History
Snowfall was reintroduced in Beta 1.5 after having been removed during Alpha with the Halloween Update, on the 31st of October, 2010. During Alpha, it was added with the Winter Mode biome update on the 9th of July, 2010.

Trivia

 * Usually it starts to snow at night or at dusk.
 * If it is snowing and you go to sleep it will most likely have stopped before you wake.
 * Snow will still fall even if you are above the cloud layer.
 * Snow and Rain are both the same weather except in certain biomes it is snow instead of rain.