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Smooth Rain v1.0
Latest Download for MC v1.8.1
Main Features:
- Nearly removes all FPS loss due to rain, recommended for those who notice a loss of FPS when it's raining
- Replaces the existing rain rendering with one made of particles
- ignore the config file, not used yet
- Replaces the existing rain rendering with one made of particles
- ignore the config file, not used yet
More Information:
Example:
My video card: Nvidia GeForce 210, $30 card
Using original Minecraft rain: 37 FPS
Using my particle enhanced rain: 65 FPS
See below for proof:

My video card: Nvidia GeForce 210, $30 card
Using original Minecraft rain: 37 FPS
Using my particle enhanced rain: 65 FPS
See below for proof:

How To Install:
Put zip file into .minecraft/mods/ folder