It may take an extra five minutes or more to raise your body temperature when it's chilly out, so take your time getting started. Going too fast or hard too soon can strain cold muscles and lead to injuries. Always listen to your body.
if it's snowing or raining. Prevent dehydration by following the same drink-up guidelines that you stick to the rest of the year: Sip 8 to 16 ounces for an hour-long workout.