December 12, 2013; 10:20 AM ET
The coldest air of the season so far has moved in around Washington, D.C. A new storm will move in this weekend with a wintry mix. more >
Cloudy with periods of rain, a little snow and sleet early in the day
Snow, sleet, and freezing rain with little or no accumulation
Rises at 7:21 AM with 9:27 of sunlight, then sets at 4:48 PM
Rises at 3:08 PM with 14:29 of moolight, then sets at 5:37 AM
Dec 5, 2013; 5:00 AM ET December is a popular month to travel because of the holidays. Some of that travel is not helping the environment. Valerie Smock explains which mode of transportation is best for the Earth.