Weather

Rules

Dimensions	Rain and thunder occur only in the Overworld. The Nether and The End have no weather.
Rain	Rain lasts 10 to 20 minutes (12,000 to 24,000 ticks). The dry spell before the next rain lasts 10 to 150 minutes (12,000 to 180,000 ticks).
Thunder	Thunder lasts 3 to 13 minutes (3,600 to 15,600 ticks), with 10 to 150 minutes between spells. It runs on its own timer, separate from rain.
Thunderstorm	A thunderstorm needs rain and thunder at the same time. Thunder without rain has no effect.
Fading	Rain and thunder take 5 seconds (100 ticks) to fade in or out when they start or stop.
Rain on a spot	A spot is rained on when it is raining, nothing above the spot blocks the sky, and the biome gives rain there instead of snow.
Snow	Where the temperature is below 0.15, rain falls as snow. Above Y 80 the temperature drops with height, so rain turns to snow on high ground.
Sleeping	When players sleep through the night while it rains, rain and thunder stop. This needs the Update weather game rule to be on.
Game rule	With the Update weather game rule off, the weather stays as it is and its timers stop.
Frozen game	Weather does not advance while the game is frozen with /tick freeze.