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Length of Day, Next Month [JSON] [iframe]

Chart uploaded on September 13, 2017.

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The first day when we will have more night then day will be Monday, September 25th. This is due to the refraction of the sun on the earth -- we don't have exactly 12 hours of daylight and 12 hours of night on the first day of autumn. Indeed, it varies a bit on how much day length on the first day of autumn as you travel to different parts of New York State, depending on how far from your from the equator.

About Autumn

More maps, photos from Autumn.