If you have an infrared thermometer (they commonly have a pistol grip and laser pointer), take it outside at night and point it up. A couple days ago in centra

If you have an infrared thermometer (they commonly have a pistol grip and laser pointer), take it outside at night and point it up. A couple days ago in central Texas at 10 pm, the air temperature at ground level was 90 F, but the temperature above was 60 F. As a comparison, last year on the same date it was 100F at ground level and 83F in the sky. In winter, on a moderately cold day of 30 F, the sky temperature is as low as -50 F. This radiant temperature has a huge effect on the "Feels Like" temperature, especially if you're not in direct sunlight. In other words, the Earth is always radiating heat away, and at night it radiates faster than it gets heated up. I'd like to collect this data automatically to see how it changes over a season.