The transition from summer’s heat to autumn’s cooler temperatures and vibrant foliage is a much-anticipated event in the Volunteer State. Determining the precise onset of this seasonal shift requires understanding both astronomical and meteorological definitions.
The astronomical arrival is dictated by the Earth’s axial tilt and orbit around the sun. It is a consistent date each year, marking the equinox. The meteorological definition, however, is based on average temperatures and can vary slightly from year to year. A clear understanding of both approaches provides context to the seasonal progression.
