Summer might not officially begin until June 20 with the summer solstice , but meteorologists and climatologists actually consider June 1 the beginning of summer.

This is because the astronomical seasons are based on the Earth’s position relative to the Sun , while "meteorological" or "climatological" seasons are divided into three-month periods based on the temperatures that would be expected during each season.

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For example, summer is the hottest time of the year and winter is the coldest time of the year , with fall and spring being the transition seasons. So, instead of focusing on the Earth’s orientation to the Sun, these so-called meteorological seasons are solely classified by the annual temperature cycle across the world .

The hottest three months of the

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