Abstract:The monsoon plays important role to determine cropping pattern of any region. The onset and withdrawal data was obtained from the analysis of weekly rainfall data for all tehsils in Ahmednagar district. which indicated that Tehsils
viz. Jamkhed, Newasa, Pathardi, Rahata, Shevgaon have mean week of onset of monsoon was 26 MW and for all other tehsils mean week of onset was 27 MW.
The mean week of withdrawal of monsoon was 41 MW observed for tehsils like Kopergaon, Newasa, Rahata, Shevgaon and Rahuri. For tehsils such as Akole, Jamkhed, Karjat, Pathardi and Rahuri the mean week of withdrawal was 42 MW, whereas 43 MW was observed to be the mean week of withdrawal for Ahmednagar, Parner, Sangamner and Shrigonda. Hence given research work study regarding onset and withdrawal of monsoon in Ahmednagar district of Maharashtra.