I looked it up, and ...
0 has a fan translation (for its PC HD remaster)
1 has a fan translation (for its DS direct port, and its PC HD remaster)
2 isn't translated, but has a fan translation for its remake. Someone is working on its direct PC port.
3 isn't translated, but has an audio-only complete fan dub. (4 and Veronica had similar attempts but they're worthless)
Also, 6 and Revelations have fan translations (for their PC ports) and 7 was officially localized.
Silent Hill 2 (PC version) too.
I think it is possible, but for some reason most Arabic fan translations for the PS1 were audio-only, except for Winning Eleven 2002 and Pepsiman.