Why do all the calendars I see suppose Spring time in the southern latitudes is the same in the northern ones?

Question

Spring time is when the Earth warms the ground so that plants can grow.

Anyone who lives above the 40ieth line of latitude knows that, this event is six weeks to two months later then it is on the at the 40ieth latitude or below.

The Sun does not support that conclusion about astronomers.

I don't find any agreeable sense in my own mind with the two answers at the top of the list.

Answer 1

Official Spring in the Northern hemisphere starts in March with the equinox. The weather folks count the entire month of March as Spring. It's different but still driven by the calendar. With global warming calendar Spring may be the same but the "spring time" weather as you mentioned will be shifted into calendar Winter especially below the 40th. So don't confuse "spring time" weather with what determines actual Spring which is fixed by the calendar.

Answer 2

Calendars use the same conventions everyone else uses for the beginning of spring--the spring equinox (days and nights are of equal length at all points on the globe-sun is directly overhead on the Equator) and ends the season with the summer solstice (longest day of the year in Northern Hemisphere-sun directly overhead at the Tropic of Cancer), i.e we are talking earth/sun relationships.

The climatic conditions for a specific location is dependent on many things and the altitude of the sun is only one of them.

Answer 3

Yes, springtime is when the weather typically gets warmer, but Spring comes March 20 or 21 in the North no matter how warm or cold it is. It has to do with astronomy.