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Dewpoint

by Tim Brice and Todd Hall
 
 
Enter a temperature, dewpoint and actual station pressure
 
Temperature:  wet-bulb temperature
Fahrenheit Celsius Kelvin Fahrenheit
Dewpoint: Celsius
Fahrenheit Celsius Kelvin Kelvin
Enter your actual station pressure (not the altimeter setting):  relative humidity
in of mercury mm of mercury millibars (hPA) %

 

What is the formula for the dewpoint script?