Kaiser said the social aspect - living alone and not having another place to go to cool down - typically plays a major role in heat-related deaths in the city. The deaths were not concentrated in any specific municipality.
The sweltering weather began last Friday with temperatures hitting 35C (95F), high humidity and, on the last day, a smog advisory. "So now we're adding another blow to that, and the blow is recurrent over multiple days".
To help residents, the city introduced a plan of emergency response, which includes the extension of the public swimming pools, free distribution of water and bypass the firefighters vulnerable categories of citizens.
"It could save a life", Genereux said.
Environment Canada has lifted heat warnings for the affected regions, including Quebec, for the next several days.
Public Health Minister Lucie Charlebois said none of the deaths occurred in a hospital or long-term care facility and that the people who died were already suffering from health problems, including mental-health issues or drug and alcohol addiction. The temperature of the air in their homes reached 38 degrees.
A heat wave in Quebec has killed 33 people in the past week as high summer temperatures scorched eastern Canada.
"What we know is, first they have heat stroke".
According to the Ministry, numerous dead were over 65 years of age and had physical or mental health problems.
Montreal-area paramedics weren't expecting a big drop-off in calls on Friday despite the more bearable conditions. The doctors of "ambulance" daily receive 1.2 thousand calls in Montreal.