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It's an EXTREMELY dry place (around 5%), so the web-bulb temperature is not especially high, an online calculator estimates numbers in the low 30s Celsius.

A wet bulb temperature of 35 Centigrade is fatal within hours even with shade and fan cooling.

"Low 30s" wet bulb is a very big deal.

Sourcing: https://en.wikipedia.org/wiki/Wet-bulb_temperature#Wet-bulb_...

Well, it's not called "Death Valley" because of the landscape.

Based on reanalysis data, it looks like wetbulb temperature never goes above 25C around Death Valley. Average temperature seems to have gone up by about 2 degrees Celsius since 1980 though, from ~19.5 degC to ~21.5 degC.

Ref: ERA5 data & https://climate-explorer.oikolab.com

Really, we should be measuring max temp by wet bulb. There are places that are literally fatal to sit outside in, but Death Valley ain't one of them.

If the relative humidity is low enough, it might be 25°C or less.[0]

0) https://en.wikipedia.org/wiki/Psychrometrics#/media/File:Psy...

I will say it like this. I would spend 24 hours in death valley than 2 in Singapore...