Question

A dry-bulb temperature of 30°C and a wet-bulb temperature of 29°C were recorded at a weather station. What are the relative humidity and the most likely weather conditions?

(1) Relative humidity is 29% with clear skies.
(2) Relative humidity is 29% with a good chance of snow.
(3) Relative humidity is 93% with clear skies.
(4) Relative humidity is 93% with a good chance  of rain.
Pelase write how to determine the right answer?

Answer 1

The answer is most likely 4 but I think you need a table or a marked hygrometer to work this out. You can't really work out humidity by the given temperatures. All you can know for sure is that there is a strong chance of rain because dew point is only 1 degree away. (I think what they want you to do is 29/30 x100)