Extreme Cold

• Preventable cold-related deaths take toll on Ontario’s homeless population, hospital staff

  Hypothermia contributed to the deaths of 62 people in 2023, with nine of them considered homeless, and 57 deaths in 2024 with 11 people listed as homeless.

  Canada

  Mar 16
  
• Ontario breaks free from extreme cold, but winter a ‘long drawn-out affair’

  The extreme cold temperatures seen in Ontario appear to finally be over with milder temperatures expected, but some snow is still in the forecast this month.

  Weather

  Feb 9
  
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• Old Man Winter growing old for Ontarians stuck in deep freeze

  Yellow alert cold warnings are in place for numerous communities throughout Ontario, reaching as far south as Windsor, east to Ottawa and north to Kapuskasing. 

  Weather

  Feb 8
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• Southern Ontario cold snap persists, wind chills near –35 C

  Southern Ontario remains locked in a deep freeze, with wind chills as low as - 35 C and Toronto logging its longest stretch of below-freezing temperatures in 11 years.

  Weather

  Feb 7
• Extreme cold disrupts Hydro-Québec exports to Massachusetts during spike in power use

  Extreme cold forces Hydro-Québec to temporarily halt electricity exports to Massachusetts as demand surged in Quebec during the recent polar vortex.

  Canada

  Jan 30
• Southern Ontario under cold warnings with frigid wind chill near -40 C

  Environment Canada warns of dangerous wind chills across southern Ontario, with temperatures feeling as cold as -40 C in some areas and frostbite possible within minutes.

  Weather

  Jan 30
• Niagara Falls partly freezes, creating ‘dazzling’ views

  Though a complete freeze is near impossible, a mixture of frozen surface water and mist can create the appearance that Niagara Falls has frozen.

  Canada

  Jan 28
• Much of Canada faces extreme cold, heavy snow in latest winter blast

  Extreme cold is expected in many parts of the country from the Prairies to the Maritimes, with heavy snow also forecast for Quebec and Atlantic Canada.

  Weather

  Jan 25
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• Flights, schools cancelled in GTA as Ontario winter storm wallops region

  A winter storm could bring up to 40 centimetres of snow to the Greater Toronto Area, with more than 20 cm and freezing temperatures expected in other parts of Ontario.

  Weather

  Jan 25
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• Polar vortex brings cold temperatures to GTA — and it’s here for the rest of January

  Bitterly cold temperatures have hit the Greater Toronto Area, and while there's a brief reprieve on Wednesday, the chilly weather is expected to stick around for the month.

  Weather

  Jan 20