Reporting
But, really, none of the
But, really, none of the calendar dates for what we call the seasons is associated with any kind of sudden temperature change. At the Autumnal equinox, maple leaves don't suddenly turn red. We basically move gradually between warm weather to cool weather to back again over and over. The idea of four separate, distinct seasons is really related more to social customs and human activity like agriculture (for planting, growing, harvesting and fallow times) isn't it?