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Personally, I would use a wind chill chart, e.g this keyring compass includes a wind chill chart that would be easy to carry. It's still not going to be accurate, but it would provide a guide when ...
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Personally, I would use a wind chill chart, e.g this keyring compass includes a wind chill chart that would be easy to carry. It's still not going to be accurate, but it would provide a guide when ...