What outdoors temperature is normal to start using an air conditioner inside?

The typical temperature at which people start using an air conditioner indoors is around 75°F (24°C) to 80°F (27°C). However, personal comfort levels can vary, and factors such as humidity and individual preferences also play a significant role in deciding when to turn on the AC. Generally, when outdoor temperatures exceed these ranges consistently, many people opt to cool their indoor spaces.