Northern Hemisphere Season -

Seasons can be defined by astronomical markers (solstices and equinoxes) or by the calendar for meteorological tracking.

Astronomical seasons are defined by the Earth's position relative to the Sun, marked by two and two equinoxes . Because Earth’s orbit is not a perfect circle and the calendar year is not exactly 365 days, these dates vary slightly each year. Infographic: Meteorological and astronomical seasons - NOAA northern hemisphere season

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