Air quality in Montreal
Moderate
Air quality is generally acceptable to most people, but some pollutants may pose moderate health risks to a very small number of people who are extremely sensitive to air pollution.
PM2.5 concentration in Montreal is currently 1.6 times the WHO annual air quality guideline value.
The air is clean and pollution poses little or no risk. Acceptable for most people.
Air quality is generally acceptable to most people, but some pollutants may pose moderate health risks to a very small number of people who are extremely sensitive to air pollution.
Air pollution has reached high levels and is dangerous for people with hypersensitivity. If you experience difficulty breathing or throat irritation, reduce your time outdoors.
People with hypersensitivity may feel ill. Healthy people may feel shortness of breath or throat irritation if they are outdoors for long periods of time. Limit prolonged exposure to the outdoors.
Everyone may begin to experience health effects, members of sensitive groups may experience more severe effects. Increased likelihood of deterioration of heart and lung function. Outdoor activities should be limited.
Montreal: detailed information
Historical Weather Data
The maximum air temperature in Montreal for this day for the last 75 years of observations is +24.1°C, recorded in 1995.
An absolute minimum of -2.4°C was recorded in 1981.
The heaviest rainfall (21.44 mm) in Montreal was recorded in 2020. The maximum wind gusts were up to 16.58 m/s in 1950.