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Definition of humidex

humidex

/ˈhjuːmɪdɛks/
hu · mi · dex
Plural:humidexes
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humidex Lexical Profile

humidex Game Scores & Validity

• noun

1

Canadian A meteorological index used to describe how hot the weather feels to the average person, calculated by combining air temperature and dew point or humidity.

Example

"Although the actual temperature was thirty degrees, the high humidity pushed the humidex up to forty."

Antonyms
View all antonyms for humidex

Word Nuance & Usage

The humidex is primarily used in Canadian meteorology; in the United States, the equivalent measurement is called the heat index.

• Nearby Words

humdrum
humerus
humid
humidex
humidifier
humidify
humidity

Word Origin & Etymology

A portmanteau of the words 'humidity' and 'index', first developed and introduced by the Meteorological Service of Canada in 1965.

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Humidex. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/humidex
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