Preventing the Effects of Oppressive and Extreme Heat

Oppressive heat is temperature that is 30 ºC or higher and with a humidex (the combination of heat and humidity) that reaches or exceeds 40.

The definition of extreme heat varies by region. On average, the temperature must be around 31 and 33 ºC daytime, and between 16 and 20 ºC at night for 3 consecutive days.

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