The debate over the "official" start of summer comes down to two different scientific tracking systems.
Meteorologists and climatologists divide the year into four neat, three-month blocks based on civil calendar months and annual temperature cycles. When Does Summer Start? - Britannica when does summer start southern hemisphere
Meteorologists and climatologists use a different system based on the annual temperature cycle and the Gregorian calendar. This method is preferred for record-keeping and weather forecasting because it aligns with full calendar months. Summer begins exactly on December 1 . The debate over the "official" start of summer
The debate over the "official" start of summer comes down to two different scientific tracking systems.
Meteorologists and climatologists divide the year into four neat, three-month blocks based on civil calendar months and annual temperature cycles. When Does Summer Start? - Britannica
Meteorologists and climatologists use a different system based on the annual temperature cycle and the Gregorian calendar. This method is preferred for record-keeping and weather forecasting because it aligns with full calendar months. Summer begins exactly on December 1 .