When Mother Nature turns up the dial on heat in West Texas, temperatures can quickly soar above the century mark. It's times like these my Facebook page and twitter are flooded with people posting outrageous readings from their car or home thermometers. That's why I just wanted to set the record straight about the accuracy behind some of these instruments, so you know just how much you can trust them.
Here's the deal, it's not so much about the actual instrument as it is about WHERE it's placed.
For example, your car thermometer is usually not located very high above the ground. That means radiation from the HOT asphalt that can reach scorching temperatures is likely influencing the thermometer reading in your car.