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)

Tropical climates stay warm throughout the year, with only small seasonal swings. The average mean temperature (dry-bulb) is the yearly average of monthly temperatures, so in the tropics it sits in the mid-20s Celsius. This makes the interval 20-30°C the best fit, since it captures the usual annual mean around 25°C. Values well below (10-20°C) or above (30-40°C) the tropical norm don’t reflect the typical year-long warmth, even though individual months can be hotter or cooler.

Tropical climates stay warm throughout the year, with only small seasonal swings. The average mean temperature (dry-bulb) is the yearly average of monthly temperatures, so in the tropics it sits in the mid-20s Celsius. This makes the interval 20-30°C the best fit, since it captures the usual annual mean around 25°C. Values well below (10-20°C) or above (30-40°C) the tropical norm don’t reflect the typical year-long warmth, even though individual months can be hotter or cooler.