Moldy exterior window moldings

[JWH]

Has anyone else had this problem? I live in Georgia, where it gets hot and humid, but it would seem weird if that caused the problem. Also, sometimes on hot summer days, when I put the driver side window down, I can smell a stinky mildew scent.

[joatmon]

Mine has the same problem (without the smell), I think it is mildew, but I haven't really tried agressively to clean it up.