Combat cold weather training is to warm up before heading out. This gets the blood flowing, starts to increase the temperature of the muscle tissue, and keeps you from using extra energy when that initial cold blast hits.
We came across some good tips for cold weather biking published by Rails-to-Trails Conservancy. Tips include tools for increasing visibility, dressing to stay warm, bike maintenance and more. Click here to check out the article on their site and stay safe out there!