If there is no any rain, we can't drink water, and the water is made from rain, then they put something to clear the water.
If they didn't clear the water, the water you drank are not good, and rain is the water that is not clear, it is dirty.
And there is another thing that is good for rain, you can take out your water gun, put some water inside, then shoot.
You can play, but you can't shoot it to people's eyes, because they will feel very hurt, so if you don't want, please don't do this.
Eyes is the thing that you can't change in your body, and don't shoot it to people's eyes, I am not lying, really.
I know another thing that you can play, you can play water with your friends, just use foot to step the water, then the wetter person is the loser.
Raining day is not good, because you can't play outside, raining day is good, because you can play water gun.
If you like to play water gun, BE CAREFUL, not lying. Can you know more games, you can play but, don't fight.
I think today I felt happy, because today I told you about raining day, and raining day is not all bad, they are good, too.