Ten or so years ago around Labor Day I was visiting my parents on a motorcycle trip and they were on a record string of >110 degree days. That was bad - the air was hot enough that sweating was insufficient. Like riding in a furnace, the opposite of wind chill. I had to stop every half hour or so and take a break in a gas station's AC. I don't think I've ever felt that way on a bicycle in any heat.
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Genesis 49:16-17