I'm sorry, that chart indicates Wet Bulb Globe Temperature, which also accounts for "solar load" or, per wikipedia[0] "solar radiation," ie the heat of the sun

I'm sorry, that chart indicates Wet Bulb Globe Temperature, which also accounts for "solar load" or, per wikipedia[0] "solar radiation," ie the heat of the sun bearing down, as well. 0. https://en.wikipedia.org/wiki/Wet-bulb_globe_temperaturealc https://en.wikipedia.org/wiki/Wet-bulb_globe_temperaturealc