Although there is an overall unity in the general climatic
patten in India, there are some perceptible regional variations in temperature and precipitation conditions.
These variations are as under Regional variation in temperature conditions
(i) In summer, the mercury occasionally touches 50 °C in some parts of Rajasthan desert, whereas it may be around 20 °C in Pahalgam in Jammu and Kashmir.
(ii) On a winter night, temperature at Drass in Jammu and Kashmir may be as low as —45° C.
Thiruvananthapuram, on the other hand, may have a temperature of 22°C.
(iii) Also there is a wide variation between day and night temperatures, e.g. In the Thar^desert the day temperature may rise of50°C and drop down to near 15°C the same night. On the other hand, there is hardly any difference in the day and night temperatures in the Andaman and Nicobar islands or in Kerala.
Regional variation in precipitation conditions
(i) The annual precipitation varies from over 400 cm in Meghalaya to less than 10 cm in Ladakh and Western Rajasthan.
(ii) Most parts of the country receive rainfall from June to September. But some parts like the Tamil Nadu coast gets a large portion of its rain during October and November.
(iii) While precipitation is mostly in the form of snowfall in the upper parts of Himalayas, it rains over the rest of the , country.
(iv) Coastal areas experience less contrasts in temperature conditions. Seasonal contrasts are more in the interior of the country.
(v) There is decrease in rainfall generally from East to West in the Northern plains.
Thus, it can be concluded that India has diverse climatic conditions.