How does a car measure the outside temperature at speed, without it skewing for windchill or engine/surface heat?
In: 92
They should really stop reporting wind chill. It’s a measurement of the speed you will radiate heat from a heat source, it is not a temperature. I think it persists because people love to claim they experienced an extreme event.
If the temperature is 0 degrees with a windchill of -10 degrees, the true temperature is 0 degrees
the sensor is actually located on the outside of the passenger compartment on the vehicle typically in the front mounted before the radiator yet behind the protective grill and positioned in such a way as not to get wet. Not that getting wet would damage the sensor just skew the readings.
The result of this placement is that the sensor reads ambient temps near the sensor until the vehicle moves cooling the surfaces warmed by exposure to the sun. IE metal and plastics.
This is best observed in the summer when you first start your vehicle. The temperature will read higher, more so if parked facing the sun. As the vehicle moves heat transfers to the air and cools the surrounding parts of the vehicle the sensor is near. Never below actual temperature as wind chill is not the actual temperature it is a measure of what the temperature feels like based on wind speed, humidity and temperature. The higher the humidity and the lower the temp even a mild breeze will have a wind chill a few degrees below actual .
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