South-west monsoon which commence in early June, is the predominant monsoon in the Yadalavagu sub-basin. Mean annual rainfall of the Yadalavagu sub basin is 612.7 mm.
Mean south west monsoon rainfall is 319.2 mm; whereas non-monsoon rainfall including north east and summer is 293.5 mm.(Umamaheswara Rao B, P. Snakara pitchaih, 2015)