Making snow&rain "affect" some things?

[Spelos]

As I said... I didn't try it so I cannot effectively tell how it will look.
But keep in mind the player could jump, fall and run.

And as far as fast timers go, I think I've read somewhere that the lowest optimal timer should be around 0.20, which makes it 5 times a second. But I might remember it wrong...

Let's say he should try it and potentially report any issues, I'm quite interested what it actually looks like.