rainfall exceeds cm. In some parts of Khasi and Jaintia hills, the rainfall exceeds , cm. In the Brahmaputra valley and the adjoining hills, the rainfall is less then cm. Areas of Medium Rainfall : Rainfall between - cm is received in the southern parts of Gujarat, east Tamil Nadu, northeastern Peninsula covering Odisha, Jharkhand, Bihar, eastern Madhya Pradesh, northern Ganga plain along the sub-Himalayas and the Cachar Valley and Manipur.
Areas of Low Rainfall : Western Uttar Pradesh, Delhi, Haryana, Punjab, Jammu and Kashmir, eastern Rajasthan, Gujarat and Deccan Plateau receive rainfall between - cm. Areas of Inadequate Rainfall : Parts of the Peninsula, especially in Andhra Pradesh, Karnataka and Maharashtra, Ladakh and most of western Rajasthan receive rainfall below cm. Snowfall is restricted to the Himalayan region. Identify the pattern of rainfall after consulting the rainfall map.
Variability of Rainfall A characteristic feature of rainfall in India is its variability. The variability of rainfall is computed with the help of the following formula: C.V. Standard Deviation Mean = × where C.V. is the coefficient of variation.
The values of coefficient of variation show the change from the mean values of rainfall. The actual rainfall in some places deviates from - per cent. The values of coefficient of variation show variability of rainfall in India. A variability of less than per cent exists on the western coasts, Western Ghats, northeastern