A Systematic Review on Indoor Environmental Quality in Naturally Ventilated School Classrooms: A Way Forward

Table 3

Global and Indian climate classification.

Region	Major climate group	Temperature (warmest month)	Temperature (coolest month)
Global, according to Koppen–Geiger Theory [55]	Tropical	>18°C	>18°C
	Dry	≥18°C	≤0°C
	Temperate	≥10°C	≥ −3°C and <18°C
	Continental	≥10°C	≤ −3°C
	Polar and alpine	≤10°C	≤0°C
	Highland	Temperature is highly dependent on adjacent zone traits and overall elevation
Region	Major climate zone	Mean of monthly temperature	Mean of monthly relative humidity
Asia (India), according to NBC 2016, India [30]	Hot and dry	>30°C	<55%
	Warm and humid	>30°C > 25°C	>55% > 75%
	Temperate	25–30°C	<75%
	Cold	<25°C	All values
	Composite	When 6 months or more do not fall in any of the categories