I have a highly accurate temperature logger that can be set to record readings from every second to every day and I clipped it to my belt on Tuesday to see what actual working temps were for me. In the morning I was in and out of the office and truck but around 7:00 I went out into the lot to work with my crew clearing an area for two new rail spurs we are installing. Mostly in direct sun. Our official temps are always taken in the shade. Check the real conditions anything sees in direct sun in this graph. Bet you can see when I took lunch...