When the weather turns cold, get out there and run
As the temperature drops it's easy to turn to the treadmill or swap a run for a cross training workout. That said, there's something rewarding about a solitary run in inclement weather. The fact that you'll see fewer runners is, in an odd way, empowering. You feel a sense of accomplishments after a cold weather run that you do not experience following a summer run. While I'm not saying you have to run outside everyday (because that's nearly impossible in some climates), I do encourage you to venture out in less than ideal running weather, knowing that you'll be grateful you did once your run is complete.
*Coach Jay's advice is provided as general training information. Use at your own risk. Always consult with your own heath care provider for questions relating to your specific training and nutrition.