(NEWSER) – It might look and feel a lot like summer out there, but it's already fall, at least according to meteorologists. "Meteorological fall" begins today and includes the entire months of September, October, and November.

Most people consider the autumnal equinox, which happens on Sept. 23 this year, to be the start of the season, but meteorologists and other experts need more precise dates to make year-on-year comparisons, a WeatherBug meteorologist explains to USA Today. For much of the country, today is going to be a hot, sticky, and decidedly summery day, though things may be a little cooler in Seattle, which has already had its hottest summer on record, KOMO News reports.

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