temperature-humidity index

noun

1. a number representing an estimate of the effect of temperature and moisture on humans, computed by multiplying the sum of dry-bulb and wet-bulb temperature readings by 0.4 and adding 15, with 65 assumed as the highest comfortable index. Abbreviation: T.H.I.

noun

1. an index of the effect on human comfort of temperature and humidity levels, 65 being the highest comfortable level