[jedberg]

This data is from North America, and it gets cold and people stay in more October to January.

It would be interesting to see if the trend is reversed in the Southern Hemisphere, although you'd be hard pressed to find anywhere that gets as cold in the winter as North America does that has a similar wealth as North America.

[molmalo]

For similar latitudes, maybe New Zeland, and some places in the Argentine Patagonia.