I think what you mean to say is "What falls from the CLOUDS in the winter." Though It's just a guess. The sky really doesn't do much by itself in any season, much less be the "container" for the changing temperatures, whereas clouds in the winter (depending on where you live) will drop snow (pieces of frozen water) if it's cold enough or rain (non-frozen water) if it's warm enough.
erm, snow...
The white stuff that often falls from the sky in the winter time made of water and crystalized ice. This mixture must stay a at least thirty five degree or lower.
rain falls of the sky snow falls of the sky
You may be referring to snow. If you come from a climate where you have never seen it, it is water vapor frozen into whitish-colored ice crystals, and in winter, it falls in flakes onto the ground.
rain is when wet falls from the sky and in England it tends to rain a awful lot!
snow
it rains
Niagara Falls in Winter - 1908 was released on: USA: July 1908
Snowflakes don´t fall at the same time, but in different moments. It falls from the sky covering the ground turning it into a beautiful white color for winter.
winter
Rain
Water that falls from the sky