Meteorologists (weather scientists) break the year into four neat seasons of three full months each to make calculating weather statistics easier.
(e.g., Australia, South America, southern Africa): December to February (astronomical summer starts around December 21–22, ending around March 20–21). Meteorological summer is December, January, February. when is summer
When summer officially begins depends on whether you are talking to an astronomer, a meteorologist, or looking at a map of the world. While many of us simply wait for the first hot day or the end of the school year, the precise timing of the season is governed by Earth's tilt and orbit. 1. The Two Primary Definitions Meteorologists (weather scientists) break the year into four