That's not global warming. That's obsolete thinking from the 1990s.
It has been well documented that the jet stream wanders around drunkenly during years of low solar activity. Warm air ends up in places that are usually cold and artic air ends up in places like new mexico where you don't expect it.
Years of high solar activity the jet streams generally stay where they're supposed to and then "it's too hot" in places are supposed to be warm.