Previous research had found a similar effect in the warmer sub-tropical city of Brisbane, but this was the first in a more temperate region of Australia.
Note that the small strip that's always contained the majority of Mexico's population corresponds nearly exactly with this narrow climate band of subtropical highlands that runs across the same area.
The sub-tropical fall is so impalpable, so much a protraction of summer, pendulous before the time of winter fruiting, that we might almost say that we have no such season.