In that write-up, Tartan Hiker, make sure you mention what color hose you were wearing. Dark colors absorb heat, you know.
I hope you've used today's day off to get this report to the publishers, have it bound, and then present it to the world in short order. If not, tomorrow's another workday and the kids don't come back 'til Thursday.
Just for the fun of it, you could repeat the experiment in tonight's snow. It's coming down pretty nicely at my house, so it's bound to be whitening the ground in your neck of the woods.
We're all anxiously awaiting the results.