So you dress for the temperature, regardless of what the wind is doing.Īll that said, my commute yesterday was at about 16F, into a 15-20 mph headwind the whole way. The real point is that even when there's no wind blowing, and the weatherman says the windchill is the same as the temp, you're going to create a "windchill" by riding. Even if all your skin is covered, you need warmer clothes if the wind is blowing on you. And they'll lose heat faster in a higher relative wind. Unless your clothes are perfect insulation (which doesn't exist in the real world), some heat is escaping through them, even with a perfect wind barrier. But when a warm surface is exposed to a colder fluid or gas, the rate at which heat is transferred will be affected by the movement of the gas. wind speed, and individual preferences, and factors such as clothing, metabolic rate, and tolerance. The numbers are calculated by the effect on exposed, warm, human skin.
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