system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 why is the temperature one number but often the "feels like" is a different number!

At least in the mid west it happens fairly often. Right now its 5 degrees but "feels like" -8. Also how is that determined? To me "feels like" isn't really scientific...


EDIT that wasn't suppose to be an exclamation point in the title.
gpt
The "feels like" includes a wind-chill factor.

We all sweat, and when our sweat comes into contact with the air, it evaporates. The process of evaporation causes the area surrounding the sweat - our skin - to cool down. If there's a wind blowing, then the air that now contains our evaporated sweat will be carried away from us by the wind, and replaced with fresh, dry air - which means more sweat can be evaporated, and more heat taken out of our body. This happens regardless of the temperature of either us or the air - although the temperature will be one factor that determines how much cooler we will feel.

The wind-chill factor is a calculation of how many degrees colder our skin will become as a result of this process.