Hello! Socratic's Terms of Service and Privacy Policy have been updated, which will be automatically effective on October 6, 2018. Please contact hello@socratic.com with any questions.

What is the approximate dew point temperature if the bulb temperature is 11 degrees C and the wet- bulb temperature is 8 degrees C?

1 Answer
Dec 8, 2016


5 C aprox.


In weather observing we use a table and not the actual formulas. Converting the wet bulb to relative humidity (RH) we get 66%. 66% RH at 11 C is about 5 C.

Here is a picture of a table for converting wet bulb to dew point. You take the air temperature on the left and look at the difference between the dry bulb and wet bulb at the top ( in this case 3). This is a good approximation not an exact value.

enter image source here