> If air temperature reaches 44C, it's impossible to survive this without artificial cooling Humidity is the other key factor though. When younger I remember

> If air temperature reaches 44C, it's impossible to survive this without artificial cooling Humidity is the other key factor though. When younger I remember a day of walking all around Phoenix for many hours on a day where it was 122F (50C) and while it felt like being inside an oven, it was ok because humidity was close to 0%. But high humidity with high temperatures is what makes it unsurvivable.