The 24-year-old Hamlin remained in critical condition a day after the Bills said his heart stopped while making a tackle in the opening quarter of a game against the Bengals.
Environment Canada is forecasting for near-normal winter weather conditions to sweep back into the GTA by Thursday.
The previous record was set in 2021 when the country welcomed more than 405,000 newcomers.
Toronto police said a man and a boy travelling in a vehicle were rushed to a trauma centre by paramedics.
