The Meteorological Season is the one most people refer to as its easy to remember because the date starts on the first appropriate month. Astronomical Season is where the Earth is in its orbit.
A meteorological season is a group of three months that usually denote a change in weather pattern. For example, a Winter season is usually cold and snowy (* if you live in a cold climate country such as Canada) whereas a Summer season is hot and dry.
There are four Meteorological season :-
An astronomical season is a period of time between a Solstice and an Equinox. A Solstice or an Equinox marks the change in Astronomical Season. A Winter Solstice is when night is longest and the day is shortest, this is usually 21st December, the Summer Solstice on the 21st June is the opposite. An Equinox is when the day and night are the same length. There are only two of each time, they all spread out evenly, not by design but by the orbit of the Earth round the Sun. When you reach any of the four days (Equinox/Solstice), the season changes astronomically.
There are four Astronomical Seasons :-
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