JonE...We've camped in sub- freezing weather (not by choice, mind you

) in the Grand Canyon, in Arizona, in Big Bend Texas, and we were able to take those days in stride (well...SORT of!) by running a 1500 watt electric cube or a 3oooBTU catalytic heater (at one night in Williams AZ we ran BOTH

)...we slept in down-filled duvets wearing our fleece and Polartec tuques...and... we ain't NEVER gonna do that again by choice.
Now, us Canucks are a hardy sort ...but December in Halifax??? that's just crazy, son!
When I go out to work in the Trillium in December in the Stor 'n Lok in balmy Southern Ontario- to get it ready for January's southern escape, a half day's efforts - even with the Cat blasting heat- there's condensation everywhere. Ask folks in "live aboard" boats in the harbour...EVERYTHING gets damp. Blankets, cushions, clothes in the closet, everything will be moist and, consequently, feel cold and clammy.
That being said...university is a voyage of discovery

...and with a mild November and couch-surfing in the dorm on freezing nights...you might prove that Canadian youth is resilient and tough as a three dollar steak
So, you might just be able to pull it off... and escape hypothermia, snowplows piling up mounds against the door in the night, frozen locks and window winders, and some drunken frat boys unplugging your electric cable, or towing you to the middle of the campus.
Go fer it

...and don't pay any mind to old farts like me.
Best of luck!
ps Cool looking trailer!
Alistair Queen's class of '72