The winter solstice is the minimum in heating, but the minimum in temperature lags because of thermal capacitance of the atmosphere-ocean-land system.
Climatologists usually consider (northern) winter to be December-January-February, which is three weeks ahead of the astronomical definition. That puts the middle of winter in the second week of January, which is pretty close to the time of the historically observed temperature minimum, at least in locations far from an ocean.
December is mostly in the Fall but in late December, it changes into Winter. The first day of meteorologic Winter is December 1 but Winter doesn't officially start til Dec. 21 (2012).
The offical date of winter is the same with the entire country, the winter solstice. In Houston, TX, it doesn't FEEL like winter until December and January. Then again, in Lamessa, TX, it doesn't feel like winter until November. It just depends on where you go, and what part of the state you're in.
Winter officially starts on the winter solstice, which occurs around December 21st in the Northern Hemisphere. This is when the North Pole is tilted farthest away from the sun, resulting in the shortest day and longest night of the year.
The first day of winter in 2018 was December 21st.
The first winter month is December.
December 23
December 21
in December
Winter begin at December. Sometimes earlier, sometimes later. It ends (officially) in February.
Officially, winter begins with the Winter Solstice on December 21.
Midnight
December 21111111111111111111111111111111111111 its todayyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy
Officially, winter begins at the winter solstice, December 21 or 22 for the entirety of the northern hemisphere.
Is it December 18th
Normally around January first and it ends at about December thirty third
Winter of 2011-2012 started on December 22 at 07:30 (7:30 AM) IST. Winter of 2012-2013 starts on December 21 at 13:12 (1:12 PM) IST.
Astronomical (calendar) winter begins December 21. Climatological winter (World Meteorological Organization) began December 1. Ecological winter begins locally with end of the growing season, usually around November in most temperate climates.