La Nina 2024 Canada Map. Nmme still shows a colder than average signal across canada for djf and generally around average for the northern tier, so that. That timing means there’s a pretty good chance la niña will be around to influence the peak of the atlantic.
When average temperatures are 0.5°c lower than normal for about half a year, it’s considered an official la niña event. These cold waters in the pacific push the jet stream northward.