The temperature in the shade here in the Napa Valley is 38⁰C (101⁰F)
But the radiant heat from our driveway is an astounding 67⁰C (152⁰F)
That's the temperature for a medium-well done steak!

The temperature in the shade here in the Napa Valley is 38⁰C (101⁰F)
But the radiant heat from our driveway is an astounding 67⁰C (152⁰F)
That's the temperature for a medium-well done steak!

Are you measuring the ambient air temperature or the surface temperature of a black tarred road in midday heat ?
Apples and oranges methinks .