UPDATE March 2, 2025: A low of -22°C is expected overnight from Sunday to Monday, with a wind chill of around -26°C. This intense cold will be short-lived thanks to a warm front accompanied by a powerful Colorado system arriving on Tuesday.
This Sunday, the wind chill is expected to reach -31, bringing exceptionally cold temperatures for March.
A mass of cold air from the north, combined with lingering winds on Sunday morning, will push the wind chill down to -30.
Such extreme cold poses a significant risk, as exposed skin can freeze within 10 to 30 minutes.
While rare, temperatures this low in March are not unprecedented.
What is Montreal’s coldest temperature on record?
Analyzing data from the past 25 years, this phenomenon has occurred several times.
Since 2000, Montreal has experienced a wind chill of -30 in March on four occasions, the most recent being March 2, 2021.
On March 6, 2007, a record-breaking wind chill of -38 was recorded in the city.
Beyond these extreme wind chills, Montreal has also seen six Marches where actual temperatures dropped to -20°C, even before factoring in wind chill.
The last occurrence was on March 11, 2017.
When will the cold weather start in Montreal?
A mass of cold air from the north, intensified by persistent winds, will bring the wind chill down to -30 on Sunday morning, but milder temperatures are expected starting Tuesday.
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