***Under what conditions would wet and dry bulb temperatures be the same?***?

Question

its for science =]

Answer 1

The humidity is 100%. This means that precipitaion is falling or it's foggy. Anything except for the sun shining is what it would be doing when there's 100% humidity.

Answer 2

At 100% relative humidity.  At this humidity the air is fully saturated with water, so none of the water on the wet-bulb cloth can evaporate off.  Therefore, that bulb cannot get any cooler than the dry bulb (which is also experiencing all the water it can from the air, at the same time).  So, both bulbs read the same.

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Answer 3

At 100% humidity, it would probably be quite foggy.