Temperatures hit 36.6 degrees making it the hottest local temperature ever recorded in May, the hottest spring day Montreal has ever seen and In fact, the second-highest temperature ever recorded in Montreal. The only day hotter than Wednesday was August 1, 1975.
- August 1, 1975 - 37.6
- May 27, 2020 - 36.6
- August 8, 2001 – 36.2