Rain starts at the max world height instead of the cloud layer, causing rain to occur above clouds.

Put the summary of the bug you're having here

What I expected to happen was...:
No rain above clouds because rain comes from clouds...

What actually happened was...:
Rain starts at the max world height instead of the cloud layer, causing rain to occur above clouds. Idk if it's a bug I saw it at minecraftwiki..

Steps to Reproduce:
1. Go above the clouds
2. ...
3. ...