Red Bull Stratos

Here's the sounding for Santa Teresa, New Mexico, which is the closest ascent to Roswell. The temperature outside the capsule was around -7 °C when he jumped at 128,000 ft (38 km), 3 hPa. He would have then fallen through increasingly colder air on the way down, reaching a minimum of -72 °C at 17.3 km. This is probably when his visor fogged up. Temperatures started to rise again, and he hit the 0 °C mark at around 4.2 km amsl (around 700 m above the 3,500 m terrain height there).