Am I able to stop or lessen the sound of rain, and only rain? I want to hear all the other interesting sounds of Minecraft, but the pitter patter of the rain is getting to me...
You can mute the rain sound by replacing the rain sound in the minecraft "resources" directory. No .JAR file editing required!
Windows: - Navigate to %appdata%/.minecraft/resources/newsound/ambient/weather
Mac: - Navigate to ~/Library/Application Support/minecraft/resources/newsound/ambient/weather
Linux: - Navigate to ~/.minecraft/resources/newsound/ambient/weather
All done! Play minecraft and now the rain will be silent.
(Note: If silent.ogg 404's on that link in the future, just search google for "silent ogg" or make one yourself in your favorite sound editor).
Bonus: You can do this for any sound file in the game, just browse around the resources directory for .ogg files.