This isn't too far off the coldest nights ever recorded here, -42.8C on 29th December 1968 and 23rd January 1969. 1999 Tahtsa Lake, BC records 145cm snow in 24 hours, Canada's greatest single day snowfall record.
The record snowfall was caused by a moist, mild southerly flow overrunning a shallow layer of cold, Arctic air.
Small planes were damaged in the wind and the storm caused a 5 storey building being built in Dartmouth, NS to collapse.
1989 In Pelly Bay, NWT an air temperature of -51C and windchill of -91C was recorded and this might have been Canada's lowest ever windchill.
Use this link to calculate the wind chill where you are now. ON, breaking a 45 year old daily maximum temperature record here.
Pleasant as this warm weather might have been it caused mudslides on construction sites and flooding in some basements.
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1909 Heavy rain on the 5th and 6th damaged roads and bridges in New Brunswick.
By way of comparison, Winnipeg's coldest night in 2001 was about -34C recorded on 11th February and the record low here is -45C recorded on February 18th 1966.
Click here to find out that the weather's doing right now in Whitehorse.
At the same time British Columbia records its coldest night on record as lows at Smith Falls drop to -58.9C.
The same storm produced a fall of 53cm snow at Moncton, NB. Temperatures at Hall Beach, NT were -46C and winds 61km/h and at Pelly Bay, NT -51C and 56km/h.
The resulting wind chills were -73 and -77 respectively.