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Weather Calculator

by Tim Brice and Todd Hall

Relative Humidity and Dewpoint Temperature from Wet-Bulb Temperature

Instructions: Enter an air temperature, a wet-bulb temperature, and an actual station pressure.
Enter an air temperature:
The calculated dewpoint temperature:
Fahrenheit Celsius Kelvin Fahrenheit
Enter a wet-bulb temperature:
 Celsius
Fahrenheit Celsius Kelvin Kelvin
Enter your actual station pressure (not the altimeter setting):
The calculated relative humidity:
inches of mercury millimeters of mercury millibars (hPa) %
Formula for Relative Humidity and Dewpoint Temperature from Wet-Bulb Temperature Script
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