The easy answer is the fact that the source of cold air this winter tended to be more in Eurasia and not North America. So what we got was more Pacific air and not Arctic air.
Quotes about eurasia (8 Quotes)
Eurasia ended up with the most domesticated animal species in part because it's the world's largest land mass and offered the most wild species to begin with.
All of Africa's mammalian domesticates - cattle, sheep, goats, horses, even dogs - entered sub-Saharan Africa from the north, from Eurasia or North Africa.
Eurasia's main axis is eastwest, whereas the main axis of the Americas is northsouth. Eurasia's eastwest axis meant that species domesticated in one part of Eurasia could easily spread thousands of miles at the same latitude, encountering the same day-len
North Eurasia is one of the best examples of religious tolerance and peaceful coexistence of Islam and Christianity. This is a rare thing in today's world, even in its most liberal parts.
There is but little room for doubt that Egypt led the way in the creation of the earliest known group of civilizations which arose on both sides of the land bridge between Africa and Eurasia in the fourth millennium B.C.
Why were there far more species of domesticated animals in Eurasia than in the Americas The Americas harbor over a thousand native wild mammal species, so you might initially suppose that the Americas offered plenty of starting material for domestication.
Oceania was at war with Eurasia; therefore Oceania had always been at war with Eurasia.