When is the first day of fall? It depends on how you define fall

Whether it’s pumpkin spice lattes, football, the State Fair of Texas, sweaters weather or bird migration, fall has different meanings depending on whom you ask — and when it begins is also up for debate.
Meteorological fall begins Sept. 1 and runs through the end of November.
Many people recognize the first day of fall as the autumnal equinox, which this year is Sunday, Sept. 22. That’s how fall is recognized astronomically — based on the sun’s position in the sky. Daylight is 12 hours. After that, the days get shorter until the winter solstice.
Opinions vary beyond that.
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For some, fall begins after Labor Day weekend or when school starts. For others, fall doesn’t start until the first Dallas Cowboys regular season game or the first corny dog turns a golden brown in a fryer at the State Fair. And many others in North Texas believe it’s not really fall until the first cold front blows through.
When it comes to fall, meteorologists The Dallas Morning News has talked to in the past agree on:
North Texas usually doesn’t get its first real cold front of the season until the second half of September, according to the weather service. The average first freeze typically comes Nov. 22. Next question: When is Thanksgiving?