The wind-chill factor will make it seem colder.

风寒系数大，会使人觉得比实际温度更冷一些。

《牛津词典》

The wind-chill factor.

风寒因素。

youdao

There is about a metre of ice on the surface and the lowest temperature has been minus 35 degrees Centigrade but with the wind chill, it can go down to about minus 70-80c.

地表的冰厚度达到1米左右，最低温度为零下35摄氏度，但是因为有风寒，温度可降至零下70至80摄氏度左右。

youdao

Robed in layers of Under Armour and wool, plus masks, liners, and hand-warmers, I welcome snow blowing horizontally and the single-digit wind-chill factor.

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Washington had warmed up, the swift storm of the previous day had passed, the sky was overcast but the air wasn't painful in a wind-chill way, and the capital was full of men in cowboy hats and women in long furs.

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The two-week training and selection exercise in Iceland has seen him working in temperatures with a wind chill of -30C.

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