Obviously you don't weld in the sun for the better part of the day, 5 days a week.
I have this Murray McLauchlan's 'Farmer's Song' image of our flatlander friend. Cracked, folded but a tad hard. Craggy plagioclase feldspar-like freckly complexion with a Geomorphology text on the ol' tractor seat for a higher view.
I might just be taking what he says for granite though.
Anywho...I'd prefer 35F over 35C.