National Weather Service United States Department of Commerce

Fire Weather Concerns In Southern California; Storm Impacting New England

The combination of gusty offshore winds, dry conditions and warm temperatures will result in a prolonged period of critical and elevated fire weather conditions across southern California this weekend into next week. Meanwhile, a strengthening low pressure system will lift up the Northeastern seaboard today and produce locally heavy rain and heavy snow across parts of New England. Read More >

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?