: Begins with the September Equinox (approx. September 22) and ends with the Winter Solstice (approx. December 21).
: Begins with the March Equinox (approx. March 20) and ends with the June Solstice (approx. June 21). The Fall Progression (Northern Hemisphere) 1. September: The Golden Transition months in fall season
The NOAA National Centers for Environmental Information groups seasons into consistent three-month blocks based on the civil calendar and annual temperature patterns. It standardizes climate data tracking. : Begins with the September Equinox (approx