Wind chill index was first determined in an experiment in Antarctica over 50 years ago. It's very ancient. There's so much more new research available.

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Most experts agree that calculating wind chill gives a number too low. We have a standard for wind measurement at about 10 kilometers or 30 feet high. It's good for aviation use but it overestimates the wind speed. The wind down below is lighter (slower) than the wind at that height.

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