Autumnal Equinox: How Will Daylight Change in Your Zip Code?
The sun will cross the celestial equator at 8:05 p.m. EDT, and meteorological fall began Sept. 1, officials said.
- On Tuesday, Sept. 22, the autumnal equinox arrives at 8:05 p.m. EDT, marking the official start of astronomical fall in the Northern Hemisphere as the sun aligns directly over Earth's equator.
- AccuWeather meteorologist Peyton Simmers explains that meteorological fall began Sept. 1, while astronomical fall arrives with the equinox; meteorologists divide the year into four three-month seasons for statistical simplicity.
- Derived from Latin, the word equinox combines "aequus," meaning equal, and "nox," meaning night, reflecting the 24-hour window when Earth experiences roughly equal amounts of daylight and darkness.
- Following the equinox, daylight in the Northern Hemisphere will shrink daily until the winter solstice on Dec. 21, while cooler conditions spread across the United States later this month.
- Peak fall foliage will reach the Northeast in early October, though Simmers noted that some warmups may still occur across the southern and eastern United States before conditions fully cool.
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21 Articles
Change of season in sight. Summer is coming to an end. At least on the calendar. Autumn begins this week. How does the exact date change according to the years?
This Wednesday, at 2 am, the Sun will be right in front of the equator. As during the spring equinox, the length of the night will be equal to that of the day. “Libé” explains this astronomical phenomenon to you.
Astronomical fall begins Tuesday: What the autumnal equinox means for skywatchers – WTOP News
Astronomically speaking, fall arrives Sept. 22 at 8:05 p.m. Eastern. This is the date and time of the autumnal equinox, the precise moment when the sun is directly above the Earth’s equator. The Earth’s seasons, fall, winter, spring and summer, are caused by the planet’s orbit around the sun and the 23.5-degree tilt of its...
The summer is ending and no, this time it is not a way of saying. Wednesday 23 September 2026, exactly at 2:05, there will be the autumn equinox. At this precise moment, the Sun will cross the celestial equator passing from the northern hemisphere to the southern one. For the northern hemisphere the event marks the official beginning of the new season and the progressive reduction of [...] The article Equinox of autumn 2026, because the summer e…
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