Average mean temperature (dbt) for tropical climates falls within which range?

Average mean temperature (dbt) for tropical climates falls within which range?

• A. 10-20 deg C
• B. 0-10 deg C
• C. 30-40 deg C
• D. 20-30 deg C

Answer: (D)

In tropical climates the air stays warm throughout the year, so the average of all monthly mean temperatures settles in the mid-20s Celsius. That makes the range 20-30 °C the best fit for the average mean temperature (dbt) in these regions. Temperatures from 10-20 °C or 0-10 °C would imply cooler, temperate conditions, while 30-40 °C would push the annual average into a hotter-than-typical range. So the mean temperature most tropical locations experience falls squarely in the 20-30 °C band.