Last week, I wondered how wind chill was measured, so I Googled the term and discovered after some research that there is no agreed-upon method to measure wind chill. In fact, scientists aren't really sure how to measure how cold it is. A few years ago, the validity of the widely used wind chill chart was called into question, and shortly thereafter the National Weather Service published a revised chart which purported to eliminate the exaggerations of its predecessor.
It just goes to show that it doesn't matter what the thermometer reads. When you're cold, you're cold, and it doesn't matter what anyone else says.