Left the house at 7:30 this fine Sunday morning to the temperature of 76 degrees (Southern California).
It was 84 when I left the meeting.
Went to play, and it quickly got up to 104. When I left to come home, I had a wet vest on, and a cooler neck thing. Made it 3/4 the way home before the vest was DRY.

Arid country = dry heat. So 104 was bearable when moving. Not so much at a light. HOWEVER, the water cooled F6B beats ANY machine that isn't on a day like today!!