Tuesday marks the first day of meteorological winter (Dec.1-Feb. 28). Wait a second, doesn’t winter start in late December? There is a difference between meteorological winter and astronomical winter. Astronomical winter begins when the sun is furthest from the earth in the northern hemisphere (5:47pm on December 21st to be precise). It is also our shortest period of daylight. Meteorological winter is simply the period of the year when the northern hemisphere is the coldest. This change in season could not have come at a better time as we are expecting bitter cold for the latter half of this week. Here is the 8-14 day outlook issued by our friends at the Climate Prediction Center as well as a longer, 1 month outlook for temperatures.
Posted under cold blast
This post was written by Aaron Brackett on November 29, 2009