Question

Study the Climatic data of the station given below and answer the questions that follow:

MONTHS	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP	OCT	NOV	DEC
TEMP (°C)	25	26	28	29	33.2	34	32.5	30.5	28.5	28	27.5	26.4
RAIN (cm)	4.5	2.4	1.4	-	-	5.4	8.5	10.8	12.6	32	35	15

1. What is the annual range of temperature of the station mentioned above?
2. What is the total annual rainfall received by the station?
3. Assuming that the station is located in the coastal region of India, identify which coast of India is associated with this kind of climate pattern.
4. Identify the hottest month.
5. Which wind brings most of the rainfall to this station? Give a reason for your answer.

Answer 1

i. Annual Range of Temperature = Maximum Temperature − Minimum Temperature

= 34°C − 25°C

= 9°C

ii. Total Annual Rainfall = Sum of rainfall of all 12 months

= 4.5 + 2.4 + 1.4 + 0 + 0 + 5.4 + 8.5 + 10.8 + 12.6 + 32 + 35 + 15

= 127.6 cm

iii. The East Coast of India (Coromandel Coast) is associated with this kind of climate pattern.

iv. June is the hottest month.

v. Northeast Monsoon winds

Reason: The data shows that the biggest rainfall occurs in the winter months of October and December (82 cm out of 127.6 cm yearly total). This happens because the winds blow from the northeast over the Bay of Bengal, picking up moisture and striking the shore.