Autumn equinox: When is the first day of fall 2021? What you need to know.
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It’s almost time to dig out those Halloween decorations and extra blankets. The official start of the fall season of 2021 is on the way. This year, autumn begins on Wednesday, Sept. 22, 2021, in the United States and elsewhere in the northern hemisphere, because that’s the date the autumn equinox...

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