Everyday is like living through spring summer fall and winter.
I was just thinking that you could loosely look at each day being the four seasons. Morning is spring, afternoon is summer, evening is fall, and night is winter.
EDIT: Seems a lot of people are having difficulty understanding a loose comparison.
Early morning is winter, midday is spring, late evening to midnight is fall. There's a lag time between the times of day and temperature just like there is with the solstices. Gotta overcome the heat capacity.