For me, having seen many 'awning tragedies' over the years, it's a condition-specific and generally conservative decision.
I don't carry an anemometer and IME wind-conditions are often very localized to the immediate environment. Direction, gusting, and likelihood of sudden change all play a role in the decision.
Bottom line, if the cautious little voice in my head expresses any concern whatsoever, I'll forego deploying my manual awning, or deploy it only a limited-distance for a bit of rain-protection at the door when that seems appropriate.