[vito]

I cant see that its totally correct. The last time i rode it was 45 and i hit over 75 for over 6 miles. According to this i would have frozen my skin and i wasnt wearing anything on my face.

If the ambient temp is above 32° F you will not freeze up, regardless of the wind chill temp.
Gets mighty uncomfortable, but you won't freeze unless ambient < 32°F.