Coldest part of the atmosphere
- Who
- Mesosphere
- What
- -100 degree(s) Celsius
- Where
- Not Applicable
- When
- 01 January 0001
The mesosphere exists between around 50 and 80 km (30 and 50 miles) above the Earth. Here, the temperature drops with altitude, reaching a minimum of around -100°C (-148°F).