Is Winter | What Month

Phenology is the study of cyclic and seasonal natural phenomena, especially in relation to climate and plant and animal life. From this perspective, winter is not defined by a calendar date or a celestial event, but by environmental markers.

This is the winter you learned about in grade school. It is based on the 23.5-degree tilt of the Earth and its journey around the sun. Winter officially begins on the —the shortest day and longest night of the year. what month is winter

This creates a situation where Christmas (December 25th) is a winter holiday in New York but a summer holiday in Sydney. Phenology is the study of cyclic and seasonal