I don’t see winter in Meteorological vs astronomical terms, I see it in how much snow we get.
Meteorological: This corresponds to the months of December, January and February in the Northern Hemisphere
Astronomical: The determines the seasons due to the 23.5 degree tilt of the Earth’s rotational axis in relation to its orbit around the sun. Also in the Northern Hemisphere, depending on the year, this corresponds to the period between 21 or 22 December and 19, 20 or 21 March.
And in 2013 we had over six feet of snow on the 22nd of March, which according to the above is spring. Where as in “winter” we had less snow, well a mere dusting.
But do head over to wiki and make your own mind up 🙂