# Calculating Humidity, Wet Bulb Temp and Dew Point [closed]

I have been trying to simulate a climate system, but I have hit a wall. I am trying to calculate Humidity. But to calculate Humidity you need the Wet Bulb Temperature, but to calculate the Wet Bulb Temperature you need humidity. I also want the Dew point temperature but to calculate that you need humidity again.

In my system I have access to Temperature, Elevation and Latitude. Am I missing a step? How can I calculate these values?

Do I need to create a pressure system using the temperature data? but then how can I use the pressure data to calculate the previous values?

I have searched and searched but can not find an answer to the problem. Every site I go to expects a variable that I don't have.