I know there's probably a thread for this already, but in Ontario right now its getting cold and grim and winters coming and I was just listening to Transilvanian hunger and I want to know of some other EXTREMELY cold and grim black metal. Dont suggest Immortal. I dont like them.

Give Paysage D'Hiver a try.

Setherial- Nord
Kampfar- Mellom Skogkledde Aaser
Sorcier Des Glaces- Snowland
Paysage d'Hiver- Self-Titled
Blut aus Nord- Ultima Thulee
Veles- Night on the Bare Mountain
Behemoth- From the Pagan Vastlands
Wanderer- Surrounded by These Firs
Ildjarn- Forest Poetry
Drautran- Unter dem Banner der Northwinde
Winterthrall- Nightmares for the Sleepless

Hate Forest - Purity
Walknut - Graveforests and Their Shadows
Arkona (Pol) - Konstelacja Lodu (Constellation of Ice)

Use the Black Metal Help Thread for such general requests. And try to be a little more specific, "cold" and "grim" can be entirely subjective, so you might as well ask for people's favourite black metal songs and get a lot of uncommented lists (see PromeIncarn's post) that help nobody.