by Steve Sievert

This feature is a continuation of the "Beginners Beat" column in the Mrach 2003 issue of Runner Triathlete News. To get the full scoop on moving from jogging to running, pick up a copy of the March issue of Runner Triathlete News. Subscribe to RTN today!

Spring can be one of the most challenging times of year for runners.

One day, it's 50 degrees and sunny. The next, six inches of snow falls. Such is life in the Northeast and parts of the Midwest. Other parts of the country have their own unique obstacles with wind, rain and humid.

This can make selecting running attire as difficult as college calculus.

However, one standing rule can serve as a key starting point: Dress as if it's 20 degrees warmer than the actual air temperature.

This approach factors in the amount of heat your body will generate on the run and ensures that you won't be overdressed. If you feel like you'll be too cold starting out, dress in layers that you can shed as you go.