Canada's First 20°C Day of 2026! Unbelievable February Warmth in Alberta! (2026)

Canada's first 20-degree daytime high of 2026 was recorded in Lethbridge, Alberta, on February 4th, 2026. This early warmth is attributed to chinook winds, a phenomenon where warm Pacific air is forced over the Rocky Mountains, warming significantly as it descends. While this is a notable occurrence, it's not unprecedented; Lethbridge recorded 20 degrees on January 11, 1997, and Calgary and Medicine Hat reached 20 degrees on February 27, 1992. The chinook effect can dramatically swing temperatures in a matter of hours, making it a fascinating and sometimes surprising weather event in Alberta.