But as the month progresses, the plot thickens. The light begins to change; it becomes softer, more golden, and slants at a lower angle. The oppressive humidity of August lifts, replaced by a crispness in the morning air. The trees, sensing the shortening days, begin their quiet preparation. September is the month of the harvest, of final garden tomatoes and the first apples. It is the season holding its breath.
The unsatisfying but honest answer:
Astronomers tell a story based on the Earth's tilt. Fall doesn't begin until the (usually September 22nd or 23rd), the moment when day and night are almost equal in length. In this version, fall continues through much of December, ending at the Winter Solstice around December 21st. Fall Around the World what months are in fall
The "story" of fall is actually told through two different lenses: the calendar we use for daily life and the movement of the stars. The Meteorologist’s Story: Three Clean Months But as the month progresses, the plot thickens
By October, the deception is over. The air turns cool, demanding the comfort of sweaters and the warmth of hearth fires. This is the month of the "killing frost," the physiological trigger that signals the trees to dismantle their chlorophyll. As the green fades, the hidden pigments—fiery oranges, brilliant yellows, and deep scarlets—are unveiled. The trees, sensing the shortening days, begin their
In the Northern Hemisphere, is clean and intuitive: