Will the Real Equinox(+60) Please Stand Up?

Why do we annually begin saying ותן טל ומטר on Dec. 4th or 5th when the Talmud and Shulchan Aruch say otherwise?

The Astronomers’ Blessing

The morning blessing Yotzer Or, “Who creates light”: “The Astronomers’ Blessing”. It focuses on things near and dear to astronomers, light and more…