Discomfort Index

Calculate the Discomfort Index based on dry bulb, wet bulb, and dew point temperatures. The higher the value, the higher the level of discomfort.

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Inputs

Results

Discomfort Index (Formula 1)-- DI
Discomfort Index (Formula 2)-- DI
Temperature TypeValue (°F)Description
Dry Bulb (td)inputs.tdPrimary temperature measurement
Wet Bulb (tw)inputs.twTemperature with moisture consideration
Dew Point (tdp)inputs.tdpTemperature at which dew forms
DI - Formula 10.4 * (inputs.td + inputs.tw) + 15DI = 0.4 (td + tw) + 15
DI - Formula 20.55 * inputs.td + 0.2 * inputs.tdp + 17.5DI = 0.55 td + 0.2 tdp + 17.5