Minecraft wiki entry for Snowfall, associated text: Snowstorms darken the world, causing the light from the sun to decrease by 3, bringing it to light level 12 in full daylight. Moonlight, however, is not reduced, and remains at light level 4. The sky itself darkens, even in biomes where it does not snow, and in Java Edition, celestial bodies (the sun, moon, and stars) are no longer visible.[1] In Bedrock Edition, the sun and moon are still visible in biomes with no snow. The clouds darken from white to a light gray, but they do not precipitate. While the sun is not visible during snowfall, the glow associated with sunrise and sunset is still visible.