This mod will "gradually" (well as much as game allows) clean player, dog, wolfs, and NPCs blood and dirt when it rains.

Mod settings are:

Only if rain intensity is above 0.2 (avoid very small rain)
Only applies if the entity to clean is not in "interior"
Original version: Removes 10% of Blood and Dirt every 10s
Experimental version: Removes 10% of Blood and Dirt every 5s, then under a certain threshold by 0.35% to look more gradual

Known Limitations

Rain still effect under sheds / outside covers like blacksmith. Interior check only really checks if inside a building like a house
Experimental version: NPCs / Dogs etc. will still get fully cleaned (unlike player)
Compared to original upload, I had to reduce the radius to clean things around player to avoid the script taking too long, especially in cities. Outside of cities radius is 15 (meters?), and 5 in cities.

Compatibility

It is compatible with any mod.

Mod Installation

Download main Rain Cleans OR Rain Cleans - Experimental file (take only one)
Extract Archives
Drop content into your KCD2\Mods folder (create if not exists)

Rain Settings

If you feel like it, there is few settings in the game mod that you can change.

As always, you will have to unpak with TotalCommander if you want to edit the raincleans.lua file.

Warning: edit Experimental version settings at your own risk